Nomenclature file from goRENI, version 3.15 as of 18-Dec-2019 Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Respiratory System Nasal cavity Cleft palate Published Respiratory System Nasal cavity Deviation, nasal septum Modified after publication Respiratory System Nasal cavity Perforation, septum Modified after publication Respiratory System Nasal cavity Atrophy Published Respiratory System Nasal cavity Degeneration Published Respiratory System Nasal cavity Eosinophilic globules Hyaline droplets; Modified Eosinophilic inclusions; after Hyaline droplet publication accumulation Respiratory System Nasal cavity Corpora amylacea Published Respiratory System Nasal cavity Amyloid Published Respiratory System Nasal cavity Necrosis Published Respiratory System Nasal cavity Erosion/ulcer Modified after publication Respiratory System Nasal cavity Regeneration Published Respiratory System Nasal cavity Inflammation Acute; Chronic; Chronic Rhinitis Modified active; Granulomatous; after Lymphocytic or eosinophilic publication Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Respiratory System Nasal cavity; Paranasal Infiltrate Type of inflammatory cell Infiltration; Infiltrate Added after sinus; Nasopharynx; Larynx; that represents the inflammatory cell; Cell publication Trachea; Bronchi; Lung: predominant cell type in the infiltration Bronchioles; Lung: Terminal infiltrate: Lymphocyte; bronchioles; Lung: Alveoli; Plasma cell; Mast cell; Pleura Monocyte/macrophage; Mononuclear; Neutrophil; Eosinophil; Basophil; Mixed

Respiratory System Nasal cavity Congestion Hyperemia Published Respiratory System Nasal cavity Edema Published Respiratory System Nasal cavity Hemorrhage Published Respiratory System Nasal cavity Angiectasis Published Respiratory System Nasal cavity Thrombus Modified after publication Respiratory System Nasal cavity; Paranasal Metaplasia, squamous cell Published sinus; Nasopharynx Respiratory System Nasal cavity Metaplasia, respiratory, Published olfactory/glandular epithelium Respiratory System Nasal cavity Hyperplasia, squamous cell Published

Respiratory System Nasal cavity Hyperplasia, transitional Published epithelium Respiratory System Nasal cavity; Paranasal Hyperplasia, respiratory Published sinus; Nasopharynx epithelium Respiratory System Nasal cavity; Paranasal Hyperplasia/metaplasia, Hyperplasia, goblet cell; Published sinus; Nasopharynx mucous cell Metaplasia, mucous cell; Metaplasia, goblet cell Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Respiratory System Nasal cavity Hyperplasia, olfactory Published epithelium Respiratory System Nasal cavity; Paranasal Hyperplasia, basal cell Published sinus; Nasopharynx Respiratory System Nasal cavity; Paranasal Hyperplasia, Published sinus; Nasopharynx neuroendocrine cell Respiratory System Nasal cavity; Paranasal Hyperplasia, atypical Modified sinus; Nasopharynx after publication Respiratory System Nasal cavity; Paranasal Papilloma, squamous cell Published sinus; Nasopharynx Respiratory System Nasal cavity; Paranasal Adenoma Published sinus; Nasopharynx Respiratory System Nasal cavity; Paranasal Carcinoma, squamous cell Published sinus; Nasopharynx Respiratory System Nasal cavity; Paranasal Carcinoma, adenosquamous Published sinus; Nasopharynx Respiratory System Nasal cavity; Paranasal Adenocarcinoma Published sinus; Nasopharynx Respiratory System Nasal cavity; Paranasal Carcinoma, neuroepithelial Neuroepithelioma, Published sinus; Nasopharynx olfactory; Neuroblastoma, olfactory; Esthesioneuroblastoma; Carcinoma, olfactory

Respiratory System Larynx; Trachea; Bronchi; Degeneration Published Lung: Bronchioles Respiratory System Larynx; Trachea; Bronchi; Necrosis Published Lung: Bronchioles Respiratory System Larynx; Trachea; Bronchi; Erosion/ulcer Modified Lung: Bronchioles after publication Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Respiratory System Larynx; Trachea; Bronchi Ectasia, submucosal gland Modified after publication Respiratory System Larynx; Trachea; Bronchi; Regeneration Published Lung: Bronchioles Respiratory System Larynx; Trachea; Bronchi; Inflammation Acute; Granulomatous; Laryngitis; Tracheitis; Modified Lung: Bronchioles Chronic; Chronic active Bronchitis after publication Respiratory System Larynx; Trachea; Bronchi; Bronchiectasis Published Lung: Bronchioles Respiratory System Larynx Epithelial alteration Published Respiratory System Larynx; Trachea; Bronchi; Metaplasia, squamous cell Published Lung: Bronchioles Respiratory System Larynx; Trachea; Bronchi; Hyperplasia, squamous cell Published Lung: Bronchioles Respiratory System Larynx; Trachea; Bronchi; Hyperplasia, respiratory Modified Lung: Bronchioles epithelium after publication Respiratory System Larynx; Trachea; Bronchi; Hyperplasia, mucous cell Metaplasia, mucous cell; Published Lung: Bronchioles Metaplasia/hyperplasia, goblet cell Respiratory System Larynx; Trachea; Bronchi; Hyperplasia, Hyperplasia, pulmonary Published Lung: Bronchioles neuroendocrine cell neuroendocrine cell (PNEC)

Respiratory System Larynx; Trachea; Bronchi; Hyperplasia, atypical Modified Lung: Bronchioles after publication Respiratory System Larynx; Trachea; Bronchi; Papilloma Published Lung: Bronchioles Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Respiratory System Larynx; Trachea; Bronchi; Tumor, neuroendocrine cell, Papilloma, neuroendocrine; Published Lung: Bronchioles benign Papilloma, pulmonary neuroendocrine cells (PNEC)

Respiratory System Larynx; Trachea; Bronchi; Carcinoma, squamous cell Carcinoma, epidermoid Published Lung: Bronchioles Respiratory System Larynx; Trachea; Bronchi; Adenocarcinoma Published Lung: Bronchioles Respiratory System Larynx; Trachea; Bronchi; Tumor, neuroendocrine cell, Carcinoma, clear cell; Published Lung: Bronchioles malignant Carcinoma, neuroendocrine

Respiratory System Lung: Terminal bronchioles; Cyst, congenital Modified Lung: Alveoli; Pleura after publication Respiratory System Lung: Terminal bronchioles; Hypoplasia Modified Lung: Alveoli after publication Respiratory System Lung: Terminal bronchioles; Degeneration Modified Lung: Alveoli after publication Respiratory System Lung: Terminal bronchioles; Necrosis Modified Lung: Alveoli after publication Respiratory System Lung: Terminal bronchioles; Regeneration Published Lung: Alveoli

Respiratory System Lung: Terminal bronchioles; Macrophages, increased Alveolar histiocytosis; Modified Lung: Alveoli Alveolar phospholipidosis after publication Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Respiratory System Lung: Terminal bronchioles; Alveolar lipoproteinosis Published Lung: Alveoli

Respiratory System Lung: Terminal bronchioles; Pigment/foreign material Modified Lung: Alveoli; Pleura after publication Respiratory System Lung: Terminal bronchioles; Inflammation Acute alveolar/interstitial; Bronchiolitis; Pneumonitis; Modified Lung: Alveoli; Pleura Chronic interstitial; Acute Pneumonia; Pleuritis after bronchioloalveolar; Chronic publication bronchioloalveolar; Granulomatous

Respiratory System Lung: Terminal bronchioles; Fibrosis Modified Lung: Alveoli; Pleura after publication Respiratory System Pleura Pyothorax Suppurative pleuritis; Published Pleurisy Respiratory System Lung: Alveoli Ectasia, acinus Modified after publication Respiratory System Lung: Alveoli Alveolar emphysema Published Respiratory System Lung: Terminal bronchioles; Atelectasis Published Lung: Alveoli

Respiratory System Lung: Terminal bronchioles; Hemorrhage Modified Lung: Alveoli; Pleura after publication Respiratory System Lung: Terminal bronchioles; Congestion Modified Lung: Alveoli after publication Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Respiratory System Lung: Terminal bronchioles; Edema Modified Lung: Alveoli after publication Respiratory System Lung: Terminal bronchioles; Embolus Modified Lung: Alveoli after publication Respiratory System Lung: Terminal bronchioles; Hypertrophy, media, artery Modified Lung: Alveoli after publication Respiratory System Lung: Terminal bronchioles; Mineralization Published Lung: Alveoli; Pleura

Respiratory System Pleura Effusion, noninflammatory Hydrothorax; Hemothorax; Modified Chylothorax after publication Respiratory System Lung: Terminal bronchioles; Metaplasia, mucous cell Metaplasia, goblet cell Modified Lung: Alveoli after publication Respiratory System Lung: Terminal bronchioles; Metaplasia, squamous cell Modified Lung: Alveoli after publication Respiratory System Lung: Terminal bronchioles; Hyperplasia, bronchiolo- Alveolar; Bronchiolar Hyperplasia, Modified Lung: Alveoli alveolar (bronchiolization); Mixed bronchiolar/alveolar; after Hyperplasia, type II cell; publication Bronchiolization Respiratory System Pleura Hyperplasia, mesothelium Published

Respiratory System Lung: Alveoli Cyst, keratinizing Modified after publication Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Respiratory System Lung: Alveoli Epithelioma, cystic, Tumor, squamous cell, Modified keratinizing keratinizing, cystic, benign; after Epithelioma, squamous; publication Cyst, squamous

Respiratory System Lung: Alveoli Epithelioma, nonkeratinizing Tumor, squamous cell, Modified nonkeratinizing, benign after publication Respiratory System Lung: Terminal bronchioles; Adenoma, bronchiolo- Solid; Papillary; Mixed; Adenoma, type II cell; Modified Lung: Alveoli alveolar Alveolar; Tubular Adenoma, pulmonary after publication Respiratory System Lung: Terminal bronchioles; Carcinoma, bronchiolo- Adenocarcinoma, Modified Lung: Alveoli alveolar pulmonary; after Adenocarcinoma, publication bronchiolo-alveolar Respiratory System Lung: Terminal bronchioles; Carcinoma, acinar Modified Lung: Alveoli after publication Respiratory System Lung: Terminal bronchioles; Carcinoma, adenosquamous Carcinoma, Modified Lung: Alveoli mucoepidermoid after publication Respiratory System Lung: Terminal bronchioles; Carcinoma, squamous cell Non-keratinizing; Carcinoma, epidermoid Modified Lung: Alveoli Keratinizing after publication Hepatobiliary System Liver Hepatodiaphragmatic Published nodule Hepatobiliary System Liver Fatty change Lipidosis; Vacuolation, lipid; Published Macrovesicular and/or microvesicular steatosis; Phospholipidosis [subtpye] Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Hepatobiliary System Liver Phospholipidosis Cytoplasmic vacuolation; Published Foam cells Hepatobiliary System Liver Amyloid Modified after publication Hepatobiliary System Liver Mineralization Published Hepatobiliary System Liver Pigment Lipofuscin; Pigment deposition Modified Iron/hemosiderin; after Porphyrin; Bile (cholestasis) publication

Hepatobiliary System Liver Crystals Published Hepatobiliary System Liver Inclusions, intranuclear and Inclusion bodies; Published cytoplasmic Intranuclear cytoplasmic invagination; Acidophilic inclusions; Globular bodies

Hepatobiliary System Liver Hypertrophy, hepatocyte Hepatocytomegaly Modified after publication Hepatobiliary System Liver Atrophy, hepatocyte Modified after publication Hepatobiliary System Liver Cytoplasmic alteration Cytoplasmic alteration; Published Cytoplasmic change; Granular change; Granular degeneration; Hyaline degeneration; Glycogen accumulation; Ground glass change Hepatobiliary System Liver Rarefaction Added after publication Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Hepatobiliary System Liver Degeneration, hydropic Cytoplasmic alteration; Published Cytoplasmic change; Hydropic change; Cloudy swelling Hepatobiliary System Liver Degeneration, cystic Spongiosis hepatis Published (traditional diagnostic term preferred by many pathologists) Hepatobiliary System Liver Single cell necrosis Apoptosis Modified after publication Hepatobiliary System Liver Necrosis, focal/multifocal Published

Hepatobiliary System Liver Necrosis, zonal Centrilobular; Midzonal; Published Periportal; Diffuse Hepatobiliary System Liver Karyocytomegaly and/or Karyocytomegaly; Published multinucleated hepatocytes Multinucleated hepatocytes; Binucleated hepatocytes; Karyomegaly; Nuclear hypertrophy; Hepatocytomegaly; Polyploidy; Anisonucleosis; Anisokaryosis

Hepatobiliary System Liver Cyst, bile duct Hepatic cysts Modified after publication Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Hepatobiliary System Liver Infiltrate, neutrophil Inflammation, acute; Acute Modified inflammatory cell after infiltrate(s); Focus/foci of publication acute inflammatory cells; Aggregate(s) of acute inflammatory cells Hepatobiliary System Liver Infiltrate, mononuclear cell Inflammation, chronic; Modified Mononuclear cell after aggregates; Inflammation, publication granulomatous; Focus/foci of mononuclear cells

Hepatobiliary System Liver Infiltrate, mixed Infiltration, purulent, and Modified inflammatory cell mononuclear; Chronic active after inflammation; Mixed publication inflammatory cell focus/foci

Hepatobiliary System Liver Infiltrate, peribiliary Modified after publication Hepatobiliary System Liver Fibrosis Published Hepatobiliary System Liver Helicobacter sp. hepatitis Published

Hepatobiliary System Liver Murine norovirus hepatitis Published

Hepatobiliary System Liver Mouse hepatitis virus Published hepatitis Hepatobiliary System Liver Tyzzer's disease (Clostridium Clostridium piliforme Published piliforme infection) infection Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Hepatobiliary System Liver Congestion Chronic passive congestion Published

Hepatobiliary System Liver Angiectasis Cystic; Cavernous Peliosis hepatis; Published Telangiectasis; Sinusoidal dilation Hepatobiliary System Liver Thrombus Modified after publication Hepatobiliary System Liver Infarct Modified after publication Hepatobiliary System Liver Hypertrophy/karyomegaly, Endothelial cell Modified endothelial cell enlargement; Cytomegaly after publication Hepatobiliary System Liver Hyperplasia, Endothelial cell hyperplasia; Modified hemangioendothelial Angiomatous hyperplasia after publication

Hepatobiliary System Liver Focus of cellular alteration Amphophilic; Basophilic, Areas of cellular alteration; Published diffuse; Basophilic, tigroid; Focus of altered Basophilic, NOS; Basophilic; hepatocytes; Hyperplastic Mixed cell; Clear cell; focus; Preneoplastic focus; Eosinophilic Enzyme altered focus; Phenotypically altered focus

Hepatobiliary System Liver Hyperplasia, hepatocyte, Hyperplasia, hepatocellular; Modified non-regenerative Focal hepatocellular after hyperplasia publication Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Hepatobiliary System Liver Hyperplasia, hepatocyte, Hyperplasia, hepatocellular; Modified regenerative Hyperplasia, regenerative; after Hyperplasia, nodular; publication Regeneration, nodular

Hepatobiliary System Liver Hypertrophy/hyperplasia, Kupffer cell proliferation; Published Kupffer cell Histiocytosis, focal or diffuse

Hepatobiliary System Liver Hyperplasia, Ito cell Stellate cell; Perisinusoidal Published cell; Fat-storing perisinusoidal cell

Hepatobiliary System Liver Hyperplasia, bile duct Cystic Modified after publication Hepatobiliary System Liver Cholangiofibrosis Bile duct adenomatosis; Published Intestinal cell metaplasia; Adenofibrosis

Hepatobiliary System Liver Hyperplasia, oval cell Oval cell proliferation; Bile Modified ductule cell hyperplasia after publication Hepatobiliary System Liver Adenoma, hepatocyte Adenoma, hepatic; Modified Adenoma, liver parenchymal after cell; Hepatoma, benign; publication Tumor, liver cell, benign; Type A nodule Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Hepatobiliary System Liver Carcinoma, hepatocyte Acinar; Solid; Trabecular; Adenocarcinoma, liver cell; Modified Adenoid Carcinoma, hepatic cell; after Carcinoma, hepatocellular; publication Carcinoma, liver cell; Hepatoma, malignant; Hepatocarcinoma; Nodule, type B

Hepatobiliary System Liver Hepatoblastoma Tumor, mixed, poorly Published differentiated Hepatobiliary System Liver Cholangioma Simple; Cystic Adenoma, bile duct; Published Adenoma, biliary; Adenoma, cholangiocellular; Cholangioma, benign

Hepatobiliary System Liver Cholangiocarcinoma Adenocarcinoma, bile duct; Published Adenocarcinoma, cholangiocellular; Carcinoma, bile duct; Carcinoma, cholangiocellular; Cholangioma, malignant Hepatobiliary System Liver Adenoma, Published hepatocholangiocellular Hepatobiliary System Liver Carcinoma, Published hepatocholangiocellular Hepatobiliary System Liver Tumor, Ito cell, benign Fat-storing cell tumor; Published Stellate cell tumor; Lipoma

Hepatobiliary System Liver Histiocytic sarcoma Kupffer cell sarcoma Published Hepatobiliary System Liver Hemangioma Capillary type; Cavernous Hemangioendothelioma, Published type benign Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Hepatobiliary System Liver Hemangiosarcoma Hemangioendothelioma, Published malignant Hepatobiliary System Liver Extramedullary Hematopoietic cell Published hematopoiesis proliferation; Myelopoiesis; Erythropoiesis

Hepatobiliary System Liver Intrahepatocellular Emperipolesis; Cytoplasmic Published erythrocytes inclusions; Hepatic erythrophagocytosis

Hepatobiliary System Liver Metaplasia, pancreatic Modified acinar cell after publication Hepatobiliary System Liver Metaplasia, glandular, Modified hepatocyte after publication Hepatobiliary System Liver Intravascular hepatocytes Vascular pseudoinvasion; Published Vascular infiltration of hepatocytes

Hepatobiliary System Gallbladder Ectopic tissue, hepatocytes Modified after publication Hepatobiliary System Gallbladder Ectopic tissue, pancreas Modified after publication Hepatobiliary System Gallbladder Hyalinosis Cytoplasmic inclusions; Published Crystals Hepatobiliary System Gallbladder Metaplasia, glandular Adenomatoid change Modified after publication Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Hepatobiliary System Gallbladder Calculus Stones; Gallstones; Modified Choleliths after publication Hepatobiliary System Gallbladder Inflammation Inflammation, gallbladder Modified after publication Hepatobiliary System Gallbladder Hyperplasia Published Hepatobiliary System Gallbladder Adenoma Adenoma, papillary Published Hepatobiliary System Gallbladder Adenocarcinoma Published Urinary System Kidney Ectopic tissue, adrenal Ectopic adrenal; Modified Adrenocortical choristoma after publication Urinary System Kidney Aplasia Unilateral hypoplasia; Renal Modified aplasia after publication Urinary System Kidney Hypoplasia Published Urinary System Kidney Renal dysplasia Modified after publication Urinary System Kidney Atrophy, tubule Published Urinary System Kidney Degeneration, tubule Degeneration/regeneration Published

Urinary System Kidney Single cell necrosis Single cell death; Apoptosis; Modified Apoptotic necrosis after publication Urinary System Kidney Necrosis Acute tubular necrosis; Toxic Published nephrosis; Oncotic necrosis; Coagulative necrosis

Urinary System Kidney Necrosis, papilla Pyramidal necrosis; Modified Analgesic nephropathy after publication Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Urinary System Kidney Infarct Cortical scar Published Urinary System Kidney Hemorrhage Published Urinary System Kidney Vacuolation Vacuolization; Vacuolar Published degeneration Urinary System Kidney Accumulation, glycogen Clear cell, tubule; Osmotic Published nephrosis; Hydropic change

Urinary System Kidney Accumulation, hyaline Hyaline droplet Published droplets nephropathy; Eosinophilic droplets Urinary System Kidney Alpha2u-globulin Eosinophilic droplets; Alpha- Published nephropathy 2u-globulin nephropathy

Urinary System Kidney Dilatation, tubule Simple tubular dilatation; Modified Tubular dilatation after publication Urinary System Kidney Cyst Cystic tubular dilation; Published Tubular ectasia; Cystic tubule Urinary System Kidney Nephropathy, retrograde Reflux nephropathy; Published Ascending pyelonephritis

Urinary System Kidney Basophilia, tubule Tinctorial change Published Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Urinary System Kidney Chronic progressive Chronic progressive Published nephropathy (CPN) nephrosis; Chronic nephritis; Spontaneous nephrosis; Chronic nephrosis; Progressive glomerulonephrosis; Progressive glomerulonephrosclerosis; Progressive nephritis; Progressive glomerulonephritis; Dietary nephritis; Chronic progressive glomerulonephropathy; Chronic progressive glomerulosclerosis; Old rat nephropathy (Barthold 1998) Urinary System Kidney Cast Hyaline; Granular Tubular proteinosis is true Modified synonym; Hyaline, granular, after protein, myoglobin or publication hemoglobin casts are subtypes

Urinary System Kidney Accumulation, adipocytes, Lipomatosis; Lipomatous Modified interstitial metaplasia after publication Urinary System Kidney Crystals Crystalluria; Urolithiasis; Published Tubular calculi Urinary System Kidney Nephropathy, obstructive Crystal nephropathy Published Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Urinary System Kidney; Renal pelvis Mineralization Tubule; Intraluminal; Calcification; Published Basement membrane; Nephrocalcinosis; Interstitial Multilamellar bodies Urinary System Kidney Metaplasia, osseous Ectopic bone formation Published Urinary System Kidney Pigment Lipofuscinosis; Bilirubinuric Modified nephropathy after publication Urinary System Kidney Inclusion bodies Published Urinary System Kidney Basophilic granules Published Urinary System Kidney Amyloid, interstitial Modified after publication Urinary System Kidney Regeneration, tubule Tubular cell regeneration Published Urinary System Kidney Karyomegaly Nuclear enlargement Published Urinary System Kidney Hypertrophy, tubule Published Urinary System Kidney Glomerulonephritis Membranoproliferative; Published Crescentic Urinary System Kidney Glomerulopathy, hyaline Published Urinary System Kidney Glomerulopathy, Mesangial thickening Published mesangioproliferative Urinary System Kidney Glomerulosclerosis Includes focal segmental Published glomerular sclerosis Urinary System Kidney Mesangiolysis Haemolytic uraemic Published syndrome Urinary System Kidney Amyloid, glomerular Modified after publication Urinary System Kidney Atrophy, glomerulus Collapsing glomerulopathy Modified after publication Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Urinary System Kidney Dilatation, Bowman's space Enlargement of Bowman's Modified space after publication Urinary System Kidney Metaplasia/hyperplasia, Metaplasia, Bowman's Published Bowman's capsule capsule; Hyperplasia of parietal epithelial cells Urinary System Kidney Hyperplasia, mesangium Mesangial cell hypertrophy Modified after publication Urinary System Kidney Infiltrate, inflammatory cell, Inflammation, focal Published interstitium Urinary System Kidney Interstitial nephritis Published Urinary System Kidney Microabscess Tubulitis; Renal abscess; Published Suppurative nephritis; Pyelonephritis (in diffuse or severe cases) Urinary System Kidney Edema, interstitial Published Urinary System Kidney; Renal pelvis Pyelonephritis Papillitis; Pyelitis (when Published restricted to renal pelvis) Urinary System Kidney Fibrosis, interstitial Peritubular fibrosis Published Urinary System Kidney Hyperplasia, tubule Simple; Atypical Simple: Focal tubule Published hyperplasia. Atypical: Atypical tubular hyperplasia; Atypical renal cell hyperplasia Urinary System Kidney Hyperplasia, oncocytic Published Urinary System Kidney Extramedullary Published hematopoiesis Urinary System Kidney Hyperplasia, juxtaglomerular Juxtaglomerular Published hypertrophy Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Urinary System Kidney Adenoma Renal tubule adenoma; Published Renal cell adenoma; Benign renal epithelioma; Benign renal cell tumor

Urinary System Kidney Amphophilic vacuolar Added after adenoma publication

Urinary System Kidney Oncocytoma Oncocytic adenoma; Published Acidophilic adenoma; Oxyphilic adenoma Urinary System Kidney Carcinoma Adenocarcinoma; Renal Published tubule carcinoma; Renal cell carcinoma; Malignant renal epithelioma

Urinary System Kidney Nephroblastematosis Nephroblastomatosis; Published Blastemal rest; Nephrogenic rest Urinary System Kidney Nephroblastoma Embryonal nephroma; Published Wilms' tumor (human nomenclature) Urinary System Kidney Renal mesenchymal tumor Stromal nephroma; Published Interstitial cell tumor of kidney; Mixed malignant tumor of kidney; Malignant mesenchymal cell tumor

Urinary System Kidney Renal sarcoma Renal fibrosarcoma Published Urinary System Ureter Aplasia, ureter Agenesis Modified after publication Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Urinary System Renal pelvis Dilatation, pelvis Drug-induced pelvic dilation; Modified Iatrogenic renal pelvic after dilation; Congenital pelvic publication dilation

Urinary System Ureter Dilatation Dilatation, ureter; Modified Hydroureter (macroscopic after term) publication Urinary System Renal pelvis; Ureter; Urethra Infiltrate, inflammatory cell Ureteritis; Cystitis; Published Urethritis; Pyelitis Urinary System Renal pelvis; Urinary bladder Erosion Attenuation, urothelium Published

Urinary System Renal pelvis; Urinary bladder Ulcer Necrosis, urothelium Modified after publication Urinary System Urinary bladder Vacuolation, urothelium Published Urinary System Urinary bladder Inclusions, urothelium Inclusion bodies; Inclusions, Published transitional epithelium

Urinary System Renal pelvis; Ureter; Urinary Calculus Urolithiasis; Concretion; Modified bladder Calculosis after publication Urinary System Renal pelvis; Ureter; Urinary Crystals Urolithiasis Published bladder Urinary System Urinary bladder Edema Published Urinary System Urinary bladder Infiltrate, inflammatory cell Cystitis; Inflammation Published

Urinary System Urinary bladder Necrosis Published Urinary System Urinary bladder Hemorrhage Published Urinary System Urinary bladder Angiectasis Dilatation, blood vessel Published Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Urinary System Urinary bladder Dilatation Modified after publication Urinary System Urinary bladder Mineralization Dystrophic calcification; Published Nephrocalcinosis Urinary System Urinary bladder Uropathy, obstructive Obstructive syndrome; Published Mouse urological syndrome (MUS) Urinary System Urinary bladder Diverticulum Published Urinary System Urinary bladder Hypertrophy, urothelium Hypertrophy, transitional Published cell Urinary System Urinary bladder; Urethra Proteinaceous plug Published Urinary System Urinary bladder Parasite, nematode Parasitism; Trichosomoides Modified crassicauda after publication Urinary System Urethra Obstruction Occlusion, urethra Published Urinary System Urethra Infiltrate, inflammatory cell Urethritis Published

Urinary System Renal pelvis; Ureter; Urinary Hyperplasia, urothelium Simple; Papillary; Nodular; Hyperplasia, transitional cell Published bladder; Urethra With atypia; Without atypia

Urinary System Renal pelvis; Ureter; Urinary Metaplasia, squamous cell Published bladder; Urethra Urinary System Ureter; Urinary bladder; Metaplasia, glandular Glandular cell metaplasia; Published Urethra Mucinous hyperplasia; Mucinous metaplasia

Urinary System Ureter; Urinary bladder; Papilloma, transitional cell Papilloma, urothelium Published Urethra Urinary System Renal pelvis; Ureter; Urinary Papilloma, squamous cell Modified bladder; Urethra after publication Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Urinary System Renal pelvis; Ureter; Urinary Carcinoma, urothelial Transitional cell carcinoma; Modified bladder; Urethra Urothelial carcinoma after publication Urinary System Ureter; Urinary bladder; Carcinoma, squamous cell Epidermoid carcinoma Published Urethra Urinary System Ureter; Urinary bladder; Adenocarcinoma Adenocarcinoma, Published Urethra urothelium Urinary System Urinary bladder; Urethra Mesenchymal proliferative Solid; Polypoid Decidual-like reaction; Published lesion Vegetative lesion; Benign mesenchymal tumor

Nervous System Brain; Cerebrum; Cellularity, decreased, Decreased neuronal Modified Cerebellum; Spinal cord; neuron numbers; Decreased after Peripheral nerve neuronal cellularity publication Nervous System Brain; Cerebrum; Chromatolysis Axonal reaction; Central Published Cerebellum; Spinal cord; chromatolysis Peripheral nerve Nervous System Brain; Cerebrum; Neuronal heterotopia Ectopia Modified Cerebellum; Spinal cord; after Peripheral nerve publication Nervous System Brain; Cerebrum; Necrosis, neuron Homogenizing cell change; Modified Cerebellum; Spinal cord; Ischemic cell change; after Peripheral nerve Metabolic arrest change; publication Oncotic necrosis; "Red dead" neurons Nervous System Brain; Cerebrum; Neuronophagia Microglial cell nodule Published Cerebellum; Spinal cord; Peripheral nerve Nervous System Brain; Cerebrum; Vacuolation, neuron Modified Cerebellum; Spinal cord; after Peripheral nerve publication Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Nervous System Brain; Cerebrum; Atrophy, axon Somatofugal atrophy Modified Cerebellum; Spinal cord; after Peripheral nerve publication Nervous System Brain; Cerebrum; Degeneration, axon Axonopathy; Dying-back Modified Cerebellum; Spinal cord; axonopathy; Nerve fiber after Peripheral nerve degeneration; Wallerian- publication type degeneration Nervous System Brain; Cerebrum; Dystrophy, axon Axonal swelling; Modified Cerebellum; Spinal cord; Neuroaxonal dystrophy after Peripheral nerve publication Nervous System Brain; Cerebrum; Type II astrocytes Astrocytic swelling; Published Cerebellum; Spinal cord Alzheimer Type II astrocytes

Nervous System Brain; Cerebrum; Astrocyte Acute gliopathy; Astrocyte Published Cerebellum; Spinal cord swelling/vacuolation swelling; Astrocyte vacuolation; Glia syndrome; Glio-vascular lesion

Nervous System Brain; Cerebrum; Astrocyte swelling Added after Cerebellum; Spinal cord publication

Nervous System Brain; Cerebrum; Astrocytosis Astrogliosis; Gemistocytic Published Cerebellum; Spinal cord astrocytes; Gemistocytosis; Glial hyperplasia; Glial hypertrophy; Reactive astroglia Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Nervous System Brain; Cerebrum; Gliosis, not otherwise Astrocytosis; Astrogliosis; Published Cerebellum; Spinal cord specified (NOS) Gemistocytosis; Glial hyperplasia; Glial hypertrophy; Microgliosis; Oligodendrocyte satellitosis

Nervous System Brain; Cerebrum; Microgliosis Microglial cell proliferation; Published Cerebellum; Spinal cord Reactive microglia; Gitter cells Nervous System Brain; Cerebrum; Satellitosis Reactive oligodendroglia Published Cerebellum; Spinal cord Nervous System Brain; Cerebrum; Demyelination Myelinolysis; Myelinopathy Published Cerebellum; Spinal cord; Peripheral nerve Nervous System Brain; Cerebrum; Intramyelinic edema Leukoencephalopathy; Published Cerebellum; Spinal cord; Myelin edema; Myelin Peripheral nerve vacuolation Nervous System Brain; Cerebrum; Vacuolation Published Cerebellum; Spinal cord Nervous System Brain; Cerebrum; Arteritis Panarteritis nodosa; Published Cerebellum; Spinal cord; Periarteritis; Polyarteritis; Peripheral nerve Polyarteritis nodosa

Nervous System Brain; Cerebrum; Infarct Regional necrosis Published Cerebellum; Spinal cord Nervous System Brain; Cerebrum; Thrombus Thrombosis; Vascular Published Cerebellum; Spinal cord occlusion Nervous System Brain; Cerebrum; Cholesterol clefts Cholesteatoma; Cholesterol Published Cerebellum; Spinal cord granuloma Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Nervous System Brain; Cerebrum; Hemorrhage Hematoma; Hemorrhagic Published Cerebellum; Spinal cord lesions Nervous System Brain; Cerebrum; Hydrocephalus Ventricular dilatation Published Cerebellum Nervous System Brain; Cerebrum; Inflammation Encephalitis; Meningitis; Published Cerebellum; Spinal cord; Myelitis; Neuritis (i.e., site- Peripheral nerve specific terms used to more precisely describe the distribution of the lesion)

Nervous System Brain; Cerebrum; Infiltrate, inflammatory cell Published Cerebellum; Spinal cord Nervous System Brain; Cerebrum; Pigment, lipofuscin Lipofuscinosis Modified Cerebellum; Spinal cord after publication Nervous System Brain; Cerebrum; Mineralization Calcification; Calcospherite Published Cerebellum; Spinal cord Nervous System Brain; Cerebrum; Cyst, squamous Epidermoid cyst; Epidermal Modified Cerebellum; Spinal cord inclusion cyst; Epithelial after inclusion cyst publication Nervous System Brain; Cerebrum; Syringomyelia/hydromyelia Published Cerebellum; Spinal cord Nervous System Brain; Cerebrum; Syringomyelia Added after Cerebellum; Spinal cord publication

Nervous System Brain; Cerebrum; Hydromyelia Added after Cerebellum; Spinal cord publication Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Nervous System Brain; Cerebrum; Medulloblastoma Cerebellar neuroblastoma; Published Cerebellum; Spinal cord Primitive neuroectodermal tumor (PNET) of cerebellum

Nervous System Brain; Cerebrum; Neuromyoblastoma, Published Cerebellum; Spinal cord malignant Nervous System Brain; Cerebrum; Astrocytoma, malignant Low grade; High grade. Modified Cerebellum; Spinal cord Protoplasmic; Fibrillary; after Gemistocytic; Pilocytic publication (pilloid) Nervous System Brain; Cerebrum; Glioma, mixed, malignant Low grade; High grade Modified Cerebellum; Spinal cord after publication Nervous System Brain; Cerebrum; Oligodendroglioma, Low grade; High grade Modified Cerebellum; Spinal cord malignant after publication Nervous System Generally used preferred Schwannoma, benign Neurilemmoma; Neurinoma Published terms Nervous System Generally used preferred Schwannoma, malignant Neurilemmoma, malignant; Published terms Neurinoma, malignant

Nervous System Cerebral meninx; Spinal Aggregate, granular cell Modified meninx after publication Nervous System Cerebral meninx; Spinal Tumor, granular cell, benign Benign granular cell tumor; Published meninx Granular cell tumor, benign

Nervous System Cerebral meninx; Spinal Tumor, granular cell, Malignant granular cell Published meninx malignant tumor; Granular cell tumor, malignant Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Nervous System Cerebral meninx; Spinal Meningioangiomatosis Published meninx Nervous System Cerebral meninx; Spinal Meningioma, benign Fibroblastic type; Published meninx Meningothelial type; Mixed type Nervous System Cerebral meninx; Spinal Meningioma, malignant Fibrous type; Spindloid type; Meningeal sarcoma Published meninx Undifferentiated type

Nervous System Brain; Cerebrum; Ependymoma, benign Published Cerebellum; Spinal cord Nervous System Brain; Cerebrum; Ependymoma, malignant Anaplastic ependymoma Published Cerebellum; Spinal cord Nervous System Brain; Cerebrum; Papilloma, choroid plexus Published Cerebellum Nervous System Brain; Cerebrum; Carcinoma, choroid plexus Published Cerebellum Nervous System Brain; Cerebrum; Hamartoma, lipomatous Published Cerebellum; Spinal cord Nervous System Brain; Cerebrum; Reticulosis, malignant Lymphoreticulosis; Published Cerebellum; Spinal cord Microgliomatosis; Primary (malignant) lymphoma of the nervous system; Primary histiocytic sarcoma of the brain

Nervous System Brain; Cerebrum; Dark neuron artifact Basophilic neurons; Dark Published Cerebellum; Spinal cord 'spiky' nerve cells; Neuronal hyperchromatosis

Nervous System Brain; Cerebrum; Myelin bubbles Adaxonal vacuoles; Myelin Published Cerebellum; Spinal cord spaces; Myelin vacuoles Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Nervous System Brain; Cerebrum; Vacuolation, white matter Vacuolar artifact Modified Cerebellum; Spinal cord after publication Mammary Gland and other Mammary gland Degeneration Published

Mammary Gland and other Mammary gland Single cell necrosis Apoptosis Modified after publication Mammary Gland and other Mammary gland Necrosis Published

Mammary Gland and other Mammary gland Basophilia Regeneration Published

Mammary Gland and other Mammary gland Infiltrate Published

Mammary Gland and other Mammary gland Inflammation Acute; Chronic; Chronic Mastitis Published active; Granulomatous Mammary Gland and other Mammary gland Fibrosis Published

Mammary Gland and other Mammary gland Congestion Hyperemia Published

Mammary Gland and other Mammary gland Edema Published

Mammary Gland and other Mammary gland Hemorrhage Published

Mammary Gland and other Mammary gland Angiectasis Published

Mammary Gland and other Mammary gland Thrombus Modified after publication Mammary Gland and other Mammary gland Corpora amylacea Published Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Mammary Gland and other Mammary gland Amyloid Published

Mammary Gland and other Mammary gland Dilatation Cystic degeneration; Cystic Modified change; Milk cysts; Ectasia; after Galactocoele publication Mammary Gland and other Mammary gland Pigment Pigmentation; Accumulation Published

Mammary Gland and other Mammary gland Mineralization Published

Mammary Gland and other Mammary gland Atrophy Feminization (male rat) Published

Mammary Gland and other Mammary gland Hypertrophy/hyperplasia, Masculinization; Virilization Modified alveolar and/or ductal cell (female rat) after publication Mammary Gland and other Mammary gland Hyperplasia, lobuloalveolar Diffuse; Focal; Focal with Pseudopregnancy Published atypia; Focal with fibrous tissue proliferation Mammary Gland and other Mammary gland Adenoma Cystic; Papillary; Published Alveolar/tubular Mammary Gland and other Mammary gland Fibroadenoma Adenomatous; Fibromatous Published

Mammary Gland and other Mammary gland Adenomyoepithelioma Published

Mammary Gland and other Mammary gland Tumor, mixed, benign Adenolipoma type Published

Mammary Gland and other Mammary gland Carcinoma, adenosquamous Adenoacanthoma, Published malignant; Keratoacanthoma Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Mammary Gland and other Mammary gland Adenocarcinoma Alveolar/tubular; Comedo; Published Cribriform; Cystic; Medullary/solid; Papillary; Scirrhous; Spindle cell; Undifferentiated

Mammary Gland and other Mammary gland Adenocarcinoma arising in Published fibroadenoma Mammary Gland and other Mammary gland Sarcoma arising in Published fibroadenoma Mammary Gland and other Mammary gland Carcinosarcoma Published

Mammary Gland and other Zymbal's gland Degeneration Published

Mammary Gland and other Zymbal's gland Single cell necrosis Apoptosis Modified after publication Mammary Gland and other Zymbal's gland Necrosis Published

Mammary Gland and other Zymbal's gland Basophilia Regeneration Published

Mammary Gland and other Zymbal's gland Infiltrate Published

Mammary Gland and other Zymbal's gland Dilatation Ductular Cystic degeneration; Cystic Modified change after publication Mammary Gland and other Zymbal's gland Atrophy, acinar cell Modified after publication Mammary Gland and other Zymbal's gland Hyperplasia Sebaceous cell; Squamous Published cell Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Mammary Gland and other Zymbal's gland Adenoma, sebaceous cell Published

Mammary Gland and other Zymbal's gland Papilloma, squamous cell Published

Mammary Gland and other Zymbal's gland Carcinoma Sebaceous cell; Squamous Published cell Mammary Gland and other Clitoral gland; Preputial Degeneration Published gland Mammary Gland and other Clitoral gland; Preputial Single cell necrosis Apoptosis Modified gland after publication Mammary Gland and other Clitoral gland; Preputial Necrosis Published gland Mammary Gland and other Clitoral gland; Preputial Basophilia Regeneration Published gland Mammary Gland and other Clitoral gland; Preputial Infiltrate Published gland Mammary Gland and other Clitoral gland; Preputial Inflammation Acute; Chronic; Chronic Published gland active; Granulomatous Mammary Gland and other Clitoral gland; Preputial Dilatation Ductular Cystic degeneration; Cystic Modified gland change after publication Mammary Gland and other Clitoral gland; Preputial Atrophy Published gland Mammary Gland and other Clitoral gland; Preputial Hyperplasia Acinar; Ductular Published gland Mammary Gland and other Clitoral gland; Preputial Hyperplasia, squamous cell Added after gland publication

Mammary Gland and other Clitoral gland; Preputial Adenoma Published gland Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Mammary Gland and other Clitoral gland; Preputial Papilloma, squamous cell Published gland Mammary Gland and other Clitoral gland; Preputial Adenocarcinoma Solid; Cystic; Papillary; Cystadenocarcinoma Published gland Papillary/cystic; Mixed cell

Mammary Gland and other Clitoral gland; Preputial Tumor, basal cell, malignant Basal cell carcinoma Published gland Mammary Gland and other Clitoral gland; Preputial Carcinoma, squamous cell Keratinizing; Non- Carcinoma, epidermoid Added after gland keratinizing publication

Male Reproductive Testis Aplasia Aplasia Modified after publication Male Reproductive Testis Hypoplasia Published Male Reproductive Testis Cryptorchidism Undescended testis; Failure Published of testicular descent

Male Reproductive Testis Degeneration/atrophy, Modified tubule after publication Male Reproductive Testis Degeneration, tubule Modified after publication Male Reproductive Testis Atrophy, tubule Sertoli cell–only tubules Modified after publication Male Reproductive Testis Necrosis, tubule Modified after publication Male Reproductive Testis Necrosis, testis Published Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Male Reproductive Testis Vacuolation, tubule Modified after publication Male Reproductive Testis Multinucleated giant cells Symplasts; Syncytial cells; Modified Multinucleated germ cells after publication Male Reproductive Testis Dilatation, tubule Modified after publication Male Reproductive Testis Dilatation, rete testis Modified after publication Male Reproductive Testis Exfoliation, germ cell Published Male Reproductive Testis Sperm stasis Sperm impaction Modified after publication Male Reproductive Testis Spermatocele Sperm cyst Published Male Reproductive Testis Degeneration, germ cell Spermatogonia; Apoptosis; Single cell Published Spermatocytes; Round necrosis spermatids; Elongating spermatids Male Reproductive Testis Depletion, germ cell Spermatogonia; Published Spermatocytes; Round spermatids; Elongating spermatids Male Reproductive Testis Spermatid retention Delayed spermiation Modified after publication Male Reproductive Testis Residual bodies, atypical Enlarged residual bodies Published Male Reproductive Testis Vacuolation, Leydig cell Published Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Male Reproductive Testis Atrophy, Leydig cell Decreased size/number of Published Leydig (interstitial) cells

Male Reproductive Testis Necrosis, Leydig cell Published Male Reproductive Testis Amyloid Published Male Reproductive Testis Fibrosis Published Male Reproductive Testis Mineralization Published Male Reproductive Testis Pigment Hemosiderosis; Published Lipofuscinosis Male Reproductive Testis Vacuolation, macrophage Published

Male Reproductive Testis Inflammation Neutrophilic; Lymphocytic; Inflammatory cell infiltrate Published Mixed cell; Granulomatous

Male Reproductive Testis Sperm granuloma Published Male Reproductive Testis Necrosis/inflammation, Vasculitis; Arteritis; Published vascular/perivascular Perivascular inflammation; Periarteritis; Polyarteritis nodosa

Male Reproductive Testis Edema Published Male Reproductive Testis Angiectasis Published Male Reproductive Testis Hyperplasia, Leydig cell Hyperplasia, interstitial cell Published

Male Reproductive Testis Hyperplasia, rete testis Published Male Reproductive Testis Hyperplasia, mesothelium Published

Male Reproductive Testis Adenoma, Leydig cell Retiform (in rat) Tumor, Leydig cell, benign; Published Tumor, interstitial cell; Tumor, benign; Interstitial cell adenoma Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Male Reproductive Testis Carcinoma, Leydig cell Tumor, Leydig cell, Published malignant; Interstitial cell tumor, malignant Male Reproductive Testis Adenoma, rete testis Published Male Reproductive Testis Carcinoma, rete testis Published Male Reproductive Testis Mesothelioma, malignant Published

Male Reproductive Testis Tumor, mixed Sertoli-Leydig Published cell, benign Male Reproductive Testis Tumor, Sertoli cell, benign Tubular adenoma; Published Sustentacular cell tumor; Sex cord stromal tumor; Gonadal stromal tumor; Androblastoma; Arrhenoblastoma Male Reproductive Testis Tumor, Sertoli cell, Tubular carcinoma; Published malignant Sustentacular cell tumor; Sex-cord stromal tumor; Gonadal stromal tumor; Androblastoma; Arrhenoblastoma Male Reproductive Testis Tumor, granulosa cell, Published benign Male Reproductive Testis Seminoma, benign Spermatocytoma; Published Spermatocytic seminoma Male Reproductive Testis Seminoma, malignant Germinoma; Published Spermatoblastoma; Spermatocytoma Male Reproductive Testis Carcinoma, embryonal Published Male Reproductive Testis Choriocarcinoma Published Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Male Reproductive Testis Carcinoma, yolk sac Modified after publication Male Reproductive Testis Teratoma, benign Published Male Reproductive Testis Teratoma, malignant Published Male Reproductive Efferent ducts; Epididymis Aplasia Agenesis Published

Male Reproductive Efferent ducts; Epididymis Hypoplasia Segmental aplasia; Published Segmental agenesis Male Reproductive Efferent ducts; Epididymis Spermatocele Cyst; Sperm retention cyst Published

Male Reproductive Efferent ducts; Epididymis Degeneration, epithelium Modified after publication Male Reproductive Efferent ducts; Epididymis Atrophy, duct Modified after publication Male Reproductive Efferent ducts; Epididymis Dilatation, duct Cystic Modified after publication Male Reproductive Efferent ducts; Epididymis Cribriform change (Intra) epithelial lumina Published formation (Foley 2001; Ladds 1993); Epithelial hyperplasia (Foley 2001); Pseudoglandular formation

Male Reproductive Efferent ducts; Epididymis Vacuolation, epithelium Macrovesicular; Vacuolar degeneration; Modified Microvesicular; Basophilic Vesicular degeneration; after Hydropic degeneration; publication Basophilic degeneration Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Male Reproductive Efferent ducts; Epididymis Single cell necrosis Apoptosis Modified after publication Male Reproductive Efferent ducts; Epididymis Metaplasia, squamous cell Published

Male Reproductive Efferent ducts; Epididymis Cell debris, lumen Caput; Cauda Sloughed germ cells; Germ Modified cell debris; Degenerate after luminal germ cells; publication Increased intraluminal germ cells Male Reproductive Epididymis Sperm, decreased, lumen Hypospermia; Oligospermia; Modified Aspermia; Reduced after spermatids publication Male Reproductive Efferent ducts; Epididymis Sperm stasis Published

Male Reproductive Efferent ducts; Epididymis Amyloid Amyloidosis Published

Male Reproductive Epididymis Karyomegaly Karyocytomegaly Published Male Reproductive Epididymis Adenosis Published Male Reproductive Efferent ducts; Epididymis Edema Published

Male Reproductive Efferent ducts; Epididymis Infiltrate, inflammatory cell Lymphocytic; Neutrophilic; Lymphocytic infiltrate; Published Plasmacytic; Mixed Mononuclear cell infiltrate; inflammatory cell Inflammation

Male Reproductive Efferent ducts; Epididymis Inflammation Neutrophilic; Lymphocytic; Epididymitis Published Lymphoplasmacytic; Mixed inflammatory cell. Other modifiers include purulent or granulomatous Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Male Reproductive Efferent ducts; Epididymis Sperm granuloma Spermatic granuloma; Published Spermatogenic epididymitis

Male Reproductive Efferent ducts; Epididymis Necrosis/inflammation, Vasculitis; Arteritis; Published vascular/perivascular Perivascular inflammation; Periarteritis; Polyarteritis nodosa

Male Reproductive Epididymis Adenoma, Leydig cell Tumor, Leydig cell, benign; Published Tumor, interstitial cell, benign Male Reproductive Epididymis Sarcoma, histiocytic Reticulum cell sarcoma; Published Histiocytic lymphoma; Histiogenic tumor Male Reproductive Prostate; Seminal vesicle; Aplasia Agenesis Published Coagulating gland; Bulbourethral gland

Male Reproductive Prostate; Seminal vesicle; Hypoplasia Published Coagulating gland; Bulbourethral gland

Male Reproductive Prostate; Seminal vesicle; Dilatation, acinar/vesicle Cystic Acinar distension; Cystic Modified Coagulating gland; dilation; Cysts; Distended after Bulbourethral gland vesicle publication

Male Reproductive Prostate; Seminal vesicle; Atrophy Acinar; Vesicle; Cystic Published Coagulating gland; Bulbourethral gland Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Male Reproductive Prostate; Seminal vesicle; Vacuolation, epithelium Macrovesicular; Vacuolar degeneration; Modified Coagulating gland Microvesicular Vesicular or hydropic after degeneration publication Male Reproductive Prostate; Seminal vesicle; Single cell necrosis Apoptosis Modified Coagulating gland; after Bulbourethral gland publication

Male Reproductive Prostate; Seminal vesicle; Necrosis Published Coagulating gland; Bulbourethral gland

Male Reproductive Prostate; Seminal vesicle; Metaplasia Mucinous; Squamous cell; Published Coagulating gland; Transitional cell Bulbourethral gland

Male Reproductive Prostate; Seminal vesicle; Amyloid Amyloidosis Published Coagulating gland; Bulbourethral gland

Male Reproductive Prostate; Seminal vesicle; Corpora amylacea Mineralized deposits; Modified Coagulating gland; Corpora amylacea after Bulbourethral gland publication

Male Reproductive Prostate; Seminal vesicle; Infiltrate, inflammatory cell Lymphocytic; Neutrophilic; Lymphoid infiltrate; Published Coagulating gland; Plasmacytic; Mixed Mononuclear cell infiltrate; Bulbourethral gland inflammatory cell Inflammation Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Male Reproductive Prostate; Seminal vesicle; Inflammation Neutrophilic; Lymphocytic; Prostatitis; Abscesses; Published Coagulating gland; Lymphoplasmacytic; Mixed Seminal vesiculitis; Bulbourethral gland cell. Other modifiers include Granulomatous purulent, or granulomatous inflammation

Male Reproductive Prostate; Seminal vesicle; Fibrosis, stroma Modified Coagulating gland; after Bulbourethral gland publication

Male Reproductive Prostate; Seminal vesicle; Inflammation, Vasculitis; Arteritis; Published Coagulating gland; vascular/perivascular Perivascular inflammation; Bulbourethral gland Periarteritis; Polyarteritis nodosa

Male Reproductive Prostate; Seminal vesicle; Angiectasis Published Coagulating gland; Bulbourethral gland; Urethral glands Male Reproductive Prostate; Seminal vesicle; Hyperplasia, reactive Hyperplasia; Regenerative Published Coagulating gland hyperplasia

Male Reproductive Prostate; Seminal vesicle; Hyperplasia, diffuse Adaptive hyperplasia; Modified Coagulating gland Simple hyperplasia after publication Male Reproductive Prostate; Seminal vesicle; Hyperplasia, atypical Focal hyperplasia; Prostatic Published Coagulating gland; intraepithelial neoplasia Ampullary gland (PIN); Adenomatous hyperplasia; Dysplasia Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Male Reproductive Prostate; Seminal vesicle Mesenchymal proliferative Vegetative lesion; Published lesion Mesenchymal tumor; Decidual-like reaction; Undifferentiated sarcoma; Leiomyosarcoma; Leiomyoblastoma; Carcinosarcoma

Male Reproductive Prostate; Seminal vesicle; Adenoma Published Coagulating gland

Male Reproductive Prostate; Coagulating gland Papilloma, squamous cell Published

Male Reproductive Seminal vesicle Tumor, epithelial-stromal, Published benign Male Reproductive Prostate; Seminal vesicle; Adenocarcinoma Published Coagulating gland

Male Reproductive Prostate; Coagulating gland Carcinoma, squamous cell Adenosquamous Published

Male Reproductive Prostate Carcinosarcoma Poorly differentiated Published adenocarcinoma; Sarcomatoid carcinoma; Epithelial mesenchymal tumor Male Reproductive Prostate Tumor, neuroendocrine cell, Carcinoma with Modified malignant predominantly after neuroepithelial publication differentiation Male Reproductive Prostate; Seminal vesicle; Tumor, granular cell, benign Abrikosoff's tumor; Published Coagulating gland Myoblastoma, benign Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Male Reproductive Prostate; Seminal vesicle; Tumor, granular cell, Published Coagulating gland malignant

Soft Tissue Soft tissue Infiltrate, inflammatory cell Mononuclear cell; Aggregate Published Lymphocyte; Neutrophil; Eosinophil; Plasma cell; Polymorphonuclear cell; Mixed cell Soft Tissue Soft tissue Inflammation Neutrophil (purulent); Abscess; Granulation tissue; Published Lymphocyte (non-purulent); Granuloma Eosinophil; Plasma cell; Mononuclear cell; Mixed cell; Granulomatous

Soft Tissue Soft tissue Fibrosis Scar formation; Sclerosis Published Soft Tissue Soft tissue Fibroplasia Published Soft Tissue Soft tissue Necrosis Published Soft Tissue Soft tissue Mineralization Calcification Published Soft Tissue Soft tissue Metaplasia Osseous; Cartilaginous type Published

Soft Tissue Soft tissue Amyloid Published Soft Tissue Adipose tissue Infiltrate, inflammatory cell Mononuclear cell; Aggregate Published Lymphocyte; Neutrophil; Eosinophil; Plasma cell; Polymorphonuclear cell; Mixed cell Soft Tissue Adipose tissue Inflammation Neutrophil (purulent); Abscess; Granulation tissue; Published Lymphocyte (non-purulent); Granuloma Eosinophil; Plasma cell; Mononuclear cell; Mixed cell; Granulomatous Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Soft Tissue Adipose tissue Inflammation, Steatitis; Obesity-associated Published lipogranulomatous inflammation Soft Tissue Adipose tissue Necrosis Fat necrosis Published Soft Tissue Adipose tissue Atrophy Serous; Mucoid Lipoatrophy; Fat atrophy Published Soft Tissue Adipose tissue Hyperplasia, adipose tissue Polymorphic adipose tissue Published

Soft Tissue Soft tissue Hyperplasia, smooth muscle Published

Soft Tissue Skeletal muscle Infiltrate, inflammatory cell Mononuclear cell; Aggregate Published Lymphocyte; Neutrophil; Eosinophil; Plasma cell; Polymorphonuclear cell; Mixed cell Soft Tissue Skeletal muscle Necrosis Published Soft Tissue Skeletal muscle Inflammation Neutrophil (purulent); Abscess; Granulation tissue; Published Lymphocyte (non-purulent); Granuloma Eosinophil; Plasma cell; Mononuclear cell; Mixed cell; Granulomatous

Soft Tissue Skeletal muscle Hypertrophy Published Soft Tissue Skeletal muscle Atrophy Denervation atrophy; Disuse Published atrophy; Nutritional atrophy; Age-related atrophy Soft Tissue Skeletal muscle Degeneration Myopathy; Myopathic Modified changes; Cytopathic changes after publication Soft Tissue Skeletal muscle Vacuolation Myopathy; Myopathic Published changes; Cytopathic changes

Soft Tissue Skeletal muscle Mineralization Published Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Soft Tissue Mesothelium Hyperplasia Published Soft Tissue Soft tissue Fibroma Benign fibrous histiocytoma Published

Soft Tissue Soft tissue Fibrosarcoma Published Soft Tissue Soft tissue Fibrosarcoma, pleomorphic Malignant fibrous Published histiocytoma Soft Tissue Soft tissue Lipoma Angiomatous type Published Soft Tissue Soft tissue Hibernoma Brown fat tumor Published Soft Tissue Soft tissue Liposarcoma Published Soft Tissue Soft tissue Rhabdomyosarcoma Published Soft Tissue Soft tissue Leiomyoma Published Soft Tissue Soft tissue Leiomyosarcoma Published Soft Tissue Soft tissue Mesenchymoma, malignant Mixed sarcoma Published

Soft Tissue Soft tissue Sarcoma, NOS (Not Published otherwise specified) Soft Tissue Mesothelium Mesothelioma, malignant Epithelioid type; Published Sarcomatoid type; Biphasic type Integument Skin; Epidermis Atrophy, epidermis Epidermal thinning Modified after publication Integument Skin; Epidermis Erosion/ulcer Published Integument Skin; Epidermis Necrosis, epidermis Full thickness type; Single Necrolysis (full thickness Modified cell type type); Sunburn cells after publication Integument Skin; Epidermis Edema, epidermis, Hydropic degeneration; Modified intracellular Vesicular degeneration; after Vacuolar degeneration; publication Ballooning degeneration; Reticular degeneration Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Integument Skin; Epidermis Edema, epidermis, Spongiosis Modified intercellular after publication Integument Skin; Epidermis Vesicle Bulla; Cleft; Reticular Published degeneration Integument Skin; Epidermis Infiltrate, inflammatory cell, Lymphocytic; Mononuclear; Exocytosis Modified epidermis Neutrophilic; Eosinophilic after publication

Integument Skin; Epidermis Pustule Lymphocytic; Mononuclear; Microabscess Published Neutrophilic; Eosinophilic

Integument Skin; Epidermis Hyperkeratosis, epidermis Orthokeratotic; Modified Parakeratotic; Crust after publication Integument Skin; Cutaneous adnexa Atrophy, adnexa Alopecia; Fading follicles Modified after publication Integument Skin; Cutaneous adnexa Adnexal dysplasia Abnormal development Modified after publication Integument Skin; Cutaneous adnexa Inflammation, adnexa Lymphocytic; Neutrophilic; Folliculitis; Perifolliculitis; Modified Eosinophilic; Granulomatous Adenitis; Periadenitis; after Furunculosis publication

Integument Skin; Cutaneous adnexa Necrosis, adnexa Single cell type; Diffuse type Vacuolar degeneration Modified after publication Integument Skin; Cutaneous adnexa Hyperkeratosis, adnexa Chloracne; Modified Hypercornification after publication Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Integument Skin; Dermis and subcutis Atrophy, dermis Modified after publication Integument Skin; Dermis and subcutis Edema, dermis Modified after publication Integument Skin; Dermis and subcutis Elastosis Published

Integument Skin; Epidermis Hyperplasia, epidermis With cellular atypia Acanthosis; Squamous Modified hyperplasia; Epidermal after hyperplasia publication Integument Skin; Epidermis Cyst, squamous Epidermal cyst; Horn cyst; Published Keratin cyst Integument Skin; Cutaneous adnexa Hyperplasia, adnexa Hair follicle; Sebaceous Sebaceous hyperplasia Modified gland after publication Integument Skin; Dermis and subcutis Hyperplasia, melanocyte Published

Integument Skin; Epidermis Papilloma, squamous cell Exophytic; Endophytic; With Published cellular atypia; Non- keratinizing Integument Skin; Epidermis Carcinoma, squamous cell Well differentiated type; Epidermoid carcinoma Published Moderately differentiated type; Poorly differentiated type

Integument Skin; Cutaneous adnexa Tumor, basal cell, benign Basosquamous type; Basalioma; Basal cell Published Trichoblastoma type; adenoma; Trichoblastoma; Granular type Basosquamous tumor

Integument Skin; Cutaneous adnexa Carcinoma, basal cell Basosquamous type; Solid Tumor, basal cell, malignant Published type Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Integument Skin; Cutaneous adnexa Adenoma, sebaceous cell Sebaceous gland adenoma Published

Integument Skin; Cutaneous adnexa Carcinoma, sebaceous cell Published

Integument Skin; Cutaneous adnexa Keratoacanthoma Infundibular keratinizing Published acanthoma; Intracutaneous cornifying epithelioma

Integument Skin; Cutaneous adnexa Tumor, hair follicle, benign Trichofolliculoma type; Trichoepithelioma; Published Trichoepithelioma type; Tricholemmoma; Tricholemmoma type; Pilomatricoma; Pilomatricoma type Trichofolliculoma Integument Skin; Cutaneous adnexa Carcinoma, eccrine gland Primary adenoid cystic Published carcinoma Integument Skin; Dermis and subcutis Melanoma, benign Melanocytoma Published

Integument Skin; Dermis and subcutis Melanoma, malignant Amelanotic type Melanosarcoma; Published Melanocytic tumor Female Reproductive Ovary Amyloid Amyloidosis Published Female Reproductive Ovary Angiectasis Vascular ectasia; Published Telangiectasis Female Reproductive Ovary Cyst, bursal Published Female Reproductive Ovary Cyst, epithelial Cyst, simple; Cyst, Published epidermoid; Cyst epithelial inclusion Female Reproductive Ovary Cyst, follicular Published Female Reproductive Ovary Cyst, luteal Published Female Reproductive Ovary Cyst, rete ovarii Published Female Reproductive Ovary Cyst, paraovarian Published Female Reproductive Ovary; Uterus; Uterine Cyst, NOS Published cervix; Vagina Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Female Reproductive Ovary Follicle, luteinized Cystic Luteinized, nonovulatory Published follicle; Luteinized unruptured follicle Female Reproductive Ovary Vacuolation, theca cell Increased; Decreased Published Female Reproductive Ovary Vacuolation, granulosa cell Increased; Decreased Fatty change Published

Female Reproductive Ovary Vacuolation, interstitial cell Increased; Decreased Fatty change Published

Female Reproductive Ovary Vacuolation, corpora lutea Published

Female Reproductive Ovary Mineralization Oocyte; Corpus luteum; Published Interstitial cell Female Reproductive Ovary Infiltrate, inflammatory cell Eosinophilic; Histiocytic; Published Neutrophilic; Lymphocytic; Mononuclear; Mixed

Female Reproductive Ovary Inflammation, ovary Neutrophilic; Lymphocytic; Oophoritis Published Mononuclear; Mixed. Other modifiers include suppurative, granulomatous

Female Reproductive Ovary Age-related atrophy Published Female Reproductive Ovary Atrophy Published Female Reproductive Ovary Atrophy, corpora lutea Small corpora lutea Published Female Reproductive Ovary Corpora lutea, increased Retained corpora lutea Modified number after publication Female Reproductive Ovary Decreased number/absent Old; New; Recent Published corpora lutea Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Female Reproductive Ovary Decreased number/absent Primordial; Primary; Published follicles Secondary; Vesicular; Tertiary; Atretic Female Reproductive Ovary Degeneration, corpora lutea Published

Female Reproductive Ovary Atretic follicles, increased Primordial; Primary; Follicular degeneration Published number Secondary; Vesicular; Tertiary; Atretic Female Reproductive Ovary Degeneration, oocyte Published Female Reproductive Ovary Pigment Hemosiderin; Lipofuscin; Published Ceroid. Alternatively, if pigment isn't definitively identified, colors can be used as modifiers Female Reproductive Ovary Edema Published Female Reproductive Ovary Ovotestis Intersex; Hermaphroditism Published

Female Reproductive Ovary Follicle, polyovular Published Female Reproductive Ovary Ectopic tissue Published Female Reproductive Ovary Immature Modified after publication Female Reproductive Ovary Hypertrophy, interstitial cell Published

Female Reproductive Ovary Hypertrophy, corpora lutea Enlarged corpora lutea; Published Activated corpora lutea; Pseudopregnancy Female Reproductive Ovary Hyperplasia, interstitial cell Published

Female Reproductive Ovary Hyperplasia, tubulostromal Hyperplasia, epithelial Published Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Female Reproductive Ovary Hyperplasia, cystic/papillary Hyperplasia, papillary; Published Hyperplasia, cystic Female Reproductive Ovary Hyperplasia, granulosa cell Published

Female Reproductive Ovary Hyperplasia, theca cell Published Female Reproductive Ovary Hyperplasia, Sertoli cell Published Female Reproductive Ovary Hyperplasia, sex cord Diffuse; Focal Published stromal, mixed Female Reproductive Ovary Hyperplasia, smooth muscle, Modified mesovarium after publication Female Reproductive Ovary Hyperplasia, rete ovarii Published Female Reproductive Ovary Adenoma, rete ovarii Published Female Reproductive Ovary Cystadenoma Published Female Reproductive Ovary Cystadenocarcinoma Published Female Reproductive Ovary Adenoma, tubulostromal Tubular adenoma Published Female Reproductive Ovary Carcinoma, tubulostromal Published

Female Reproductive Ovary; Uterus; Uterine Carcinoma, yolk sac Tumor, endodermal sinus, Published cervix malignant; Tumor, yolk sac, malignant Female Reproductive Ovary; Uterus; Uterine Choriocarcinoma Chorioepithelioma, Published cervix malignant Female Reproductive Ovary; Uterus; Uterine Carcinoma, embryonal Published cervix Female Reproductive Ovary Dysgerminoma Ovarian seminoma Published Female Reproductive Ovary Leiomyoma, mesovarium Modified after publication Female Reproductive Ovary Tumor, granulosa cell, Tumor, sex cord stromal, Published benign benign, granulosa cell type Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Female Reproductive Ovary Tumor, granulosa cell, Gynoblastoma; Tumor, sex Published malignant cord stromal, malignant, granulosa cell type

Female Reproductive Ovary Tumor, Sertoli cell, benign Tumor, gonadal stromal, Published benign; Tumor, sex cord stromal, benign; Tumor, sex cord stromal, benign, Sertoli type; Tumor, sustentacular, benign; Sertoliform tubular adenoma

Female Reproductive Ovary Tumor, Sertoli cell, Androblastoma; Published malignant Arrhenoblastoma; Tumor, gonadal stromal, malignant; Tumor, sex cord stromal, malignant; Tumor, sex cord stromal, malignant, Sertoli type; Tumor, sustentacular, malignant

Female Reproductive Ovary Tumor, sex cord stromal, Published mixed, benign Female Reproductive Ovary Tumor, sex cord stromal, Gonadal stromal tumor, Published mixed, malignant malignant; Granulosa-thecal cell tumor, malignant; Mixed tumor, malignant

Female Reproductive Ovary Thecoma, benign Tumor, sex cord stromal, Published benign, thecoma type; Tumor, theca cell, benign Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Female Reproductive Ovary Thecoma, malignant Tumor, sex cord stromal, Published malignant, thecoma type; Tumor, theca cell, malignant

Female Reproductive Ovary Luteoma, benign Gonadal stromal sex cord Published tumor, benign, luteoma type; Luteinized granulosa cell tumor, benign

Female Reproductive Ovary; Uterus Teratoma, benign Benign cystic teratoma; Published Dermoid cyst; Mature teratoma Female Reproductive Ovary; Uterus Teratoma, malignant Immature teratoma; Cystic Published teratoma Female Reproductive Uterus Aplasia, segmental Agenesis, partial; Dysgenesis Published

Female Reproductive Uterus; Uterine cervix; Atrophy Epithelial; Endometrial; Published Vagina Myometrial; Stromal Female Reproductive Uterus Hypoplasia Endometrial; Epithelial Published Female Reproductive Uterus Hypertrophy, epithelium Modified after publication Female Reproductive Uterus Hypertrophy, myometrium Modified after publication Female Reproductive Uterus Dilatation, lumen Hydrometra; Dilatation Modified after publication Female Reproductive Uterus Dilatation, glandular, cystic Cystic Modified after publication Female Reproductive Uterus Adenomyosis Published Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Female Reproductive Uterus Angiectasis Published Female Reproductive Oviduct; Uterus; Uterine Infiltrate, inflammatory cell Eosinophilic; Histiocytic; Published cervix; Vagina Neutrophilic; Lymphocytic; Mononuclear; Mixed

Female Reproductive Uterus Inflammation, endometrium Neutrophilic; Lymphocytic; Endometritis Published Mononuclear; Mixed. Other modifiers include suppurative, granulomatous

Female Reproductive Uterus Inflammation, myometrium Neutrophilic; Lymphocytic; Myometritis Published Mononuclear; Mixed. Other modifiers include suppurative, granulomatous

Female Reproductive Uterus Abscess(es) Published Female Reproductive Uterus Pyometra Published Female Reproductive Uterus Granuloma Published Female Reproductive Uterus Amyloid Published Female Reproductive Uterus Pigment Hemosiderin; Ceroid; Published Lipofuscin/ceroid. Alternatively, if pigment isn't definitively identified, colors can be used as modifiers Female Reproductive Uterus Apoptosis Endometrial; Luminal; Published Epithelial; Glandular; Stromal Female Reproductive Uterus Necrosis Endometrial; Myometrial Published Female Reproductive Uterus Fibrosis Myometrial; Stromal Hyalinization, stromal Published Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Female Reproductive Uterus Decidual reaction Deciduoma; Decidual Published nodule; Decidual alteration

Female Reproductive Uterus Decidualization, focal Stromal Published pseudodecidualization, focal; Decidual alteration Female Reproductive Uterus Mesonephric duct remnants Persistent mesonephric Published ducts Female Reproductive Uterus Metaplasia, squamous cell Non-keratinizing; Squamous cell metaplasia Published Keratinizing Female Reproductive Uterus Vacuolation, epithelium Modified after publication Female Reproductive Oviduct Inflammation, oviduct Neutrophilic; Lymphocytic; Published Mononuclear; Mixed. Other modifiers include suppurative, granulomatous

Female Reproductive Oviduct Salpingitis isthmica nodosa SIN; Diverticulosis Published

Female Reproductive Oviduct Atrophy Published Female Reproductive Uterus Hyperplasia, glandular, Cystic; Endometrial Cystic endometrial Published cystic hyperplasia; CEH Female Reproductive Uterus Hyperplasia, glandular, focal Atypical Adenomatous hyperplasia; Published Atypical glandular hyperplasia Female Reproductive Uterus Hyperplasia, endometrium, Modified diffuse after publication Female Reproductive Uterus Hyperplasia, endometrial Endometrial stromal Published stromal hyperplasia Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Female Reproductive Uterus Hyperplasia, angiomatous Angiomatous hyperplasia Published

Female Reproductive Uterus Hyperplasia, myometrium Myometrial hyperplasia Modified after publication Female Reproductive Oviduct Hyperplasia, epithelium Modified after publication Female Reproductive Uterus; Uterine cervix Polyp, glandular Polyp, adenomatous Published Female Reproductive Uterus; Uterine cervix Polyp, endometrial stromal Tumor, endometrial Published stromal, benign; Tumor, stromal, benign Female Reproductive Uterus Sarcoma, endometrial Sarcoma, mesenchymal; Published stromal Sarcoma, uterine Female Reproductive Uterus Sarcoma, histiocytic Reticulum cell sarcoma Published Female Reproductive Uterus Adenoma, endometrium Modified after publication Female Reproductive Uterus; Uterine cervix Adenocarcinoma, Endometrial carcinoma; Modified endometrium Endometrial after adenocarcinoma publication Female Reproductive Uterus; Uterine cervix Carcinoma, adenosquamous Adenoacanthoma, Published malignant Female Reproductive Uterus; Uterine cervix; Carcinoma, squamous cell Keratinizing; Non- Carcinoma, epidermoid Published Vagina keratinizing Female Reproductive Uterus; Uterine cervix Tumor, mixed Müllerian, Homologous; Heterologous Benign mixed mesodermal Published benign tumor Female Reproductive Uterus; Uterine cervix Tumor, mixed Müllerian, Homologous; Heterologous Malignant mixed Published malignant mesodermal tumor; Carcinosarcoma Female Reproductive Uterus; Uterine cervix; Leiomyoma Myometrium; Mesovarium; Published Vagina Uterus Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Female Reproductive Uterus; Uterine cervix; Leiomyosarcoma Uterus Published Vagina Female Reproductive Uterus; Uterine cervix; Schwannoma, benign Neurilemmoma, benign; Published Vagina Neurinoma, benign Female Reproductive Uterus; Uterine cervix; Schwannoma, malignant Neurilemmoma, malignant; Published Vagina Neurinoma, malignant

Female Reproductive Uterine cervix; Vagina Aggregate, granular cell Published Female Reproductive Uterine cervix; Vagina Atrophy, epithelium Modified after publication Female Reproductive Uterine cervix; Vagina Degeneration, epithelium Modified after publication Female Reproductive Uterine cervix; Vagina Erosion/ulcer Published Female Reproductive Vagina Imperforate vagina Imperforate hymen; Published Persistent hymen Female Reproductive Uterine cervix; Vagina Keratinization, increased Cornification; Modified Hyperkeratosis; after Hyperkeratinization publication Female Reproductive Uterine cervix; Vagina Mucification, increased Hypermucification Modified after publication Female Reproductive Uterus; Uterine cervix; Inflammation Neutrophilic; Lymphocytic; Vaginitis; Cervicitis; Metritis Published Vagina Mononuclear; Mixed. Other modifiers include suppurative, granulomatous

Female Reproductive Uterine cervix; Vagina Necrosis, epithelium Modified after publication Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Female Reproductive Uterus; Uterine cervix; Prolapse Published Vagina Female Reproductive Vagina Prostatic rudiment Skene's glands; Skene's Published paraurethral glands; Female prostate Female Reproductive Uterine cervix; Vagina Vacuolation, epithelium Modified after publication Female Reproductive Uterine cervix; Vagina Adenosis Adenomatous Published differentiation; Adenomatous hyperplasia

Female Reproductive Uterine cervix; Vagina Hyperplasia, epithelium Basal cell; Squamous cell Modified after publication Female Reproductive Uterus; Uterine cervix; Hyperplasia, granular cell Published Vagina Female Reproductive Uterine cervix Hyperplasia, stroma Published Female Reproductive Uterine cervix Hypertrophy, stroma Hypertrophy of the Portio Published Vaginalis Female Reproductive Uterine cervix; Vagina Keratoacanthoma Keratinizing; Non- Epithelioma Published keratinizing Female Reproductive Uterus; Uterine cervix; Papilloma, squamous cell Keratinizing; Non- Published Vagina keratinizing Female Reproductive Vagina Polyp, vaginal Polyp, squamous Published Female Reproductive Uterine cervix Sarcoma, stromal Published Female Reproductive Uterus; Uterine cervix; Tumor, granular cell, benign Abrikossoff's tumor, benign; Published Vagina Myoblastoma Female Reproductive Uterus; Uterine cervix; Tumor, granular cell, Published Vagina malignant Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Digestive Oral cavity, NOS Ectopic tissue, sebaceous Fordyce's granules Modified gland after publication Digestive Oral cavity, NOS Cleft palate Palatoschisis; Congenital Published malformation Digestive Esophagus Dilatation, esophagus Distention; Megaesophagus; Published Dilatation; Impaction

Digestive Esophagus Diverticulum, esophagus Pharyngoesophageal Published diverticulum Digestive Tongue; Pharynx; Oral Malformation Congenital malformation Published cavity, NOS; Esophagus Digestive Tongue; Pharynx; Oral Cyst Published cavity, NOS; Esophagus Digestive Tongue; Pharynx; Oral Atrophy, squamous Atrophy Published cavity, NOS; Esophagus epithelium Digestive Tongue; Pharynx; Oral Erosion/ulcer Erosion; Ulcer; Ulceration Published cavity, NOS; Esophagus Digestive Tongue; Pharynx; Oral Apoptosis, squamous Apoptotic cell death Published cavity, NOS; Esophagus epithelium Digestive Tongue; Pharynx; Oral Necrosis, squamous Single cell Oncotic cell death; Oncotic Published cavity, NOS; Esophagus epithelium necrosis; Necrosis

Digestive Tongue; Pharynx; Oral Apoptosis/single cell Cell death Modified cavity, NOS; Esophagus necrosis after publication Digestive Tongue; Pharynx; Oral Degeneration/necrosis, Published cavity, NOS; Esophagus muscle Digestive Tongue; Pharynx; Oral Amyloid Amyloidosis; Amyloid Published cavity, NOS; Esophagus deposition Digestive Tongue; Pharynx; Oral Mineralization Calcification; Mineral Published cavity, NOS; Esophagus deposition Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Digestive Tongue; Pharynx; Oral Pigment Pigment deposition; Published cavity, NOS; Esophagus Pigment Digestive Tongue; Pharynx; Oral Hyperkeratosis Orthokeratotic; Hyperkeratosis, Published cavity, NOS; Esophagus Parakeratotic orthokeratotitc may have been identified as Hyperkeratosis; Hyperkeratosis, parakeratotic may have been identified as Parakeratosis Digestive Tongue; Pharynx; Oral Infiltrate Type of inflammatory cell Infiltrate inflammatory; Published cavity, NOS; Esophagus that represents the Infiltrate inflammatory cell; predominant cell type in the Infiltration (plus modifier); infiltrate Infiltration, inflammatory; Infiltration, inflammatory cell

Digestive Tongue; Pharynx; Oral Inflammation, mononuclear Published cavity, NOS; Esophagus cell Digestive Tongue; Pharynx; Oral Inflammation, mixed cell Published cavity, NOS; Esophagus Digestive Tongue; Pharynx; Oral Inflammation, foreign body Published cavity, NOS; Esophagus Digestive Tongue; Pharynx; Oral Inflammation, vessel Arteritis; Vasculitis; Published cavity, NOS; Esophagus Polyarteritis Digestive Tongue; Pharynx; Oral Edema Published cavity, NOS; Esophagus Digestive Tongue; Pharynx; Oral Hemorrhage Published cavity, NOS; Esophagus Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Digestive Tongue; Pharynx; Oral Hyperplasia, squamous cell Atypical Hyperplasia, squamous cell, Published cavity, NOS; Esophagus atypical may have been identified as: Dysplasia; Hyperplasia with atypia

Digestive Tongue; Pharynx; Oral Hyperplasia, basal cell Published cavity, NOS; Esophagus Digestive Tongue; Pharynx; Oral Papilloma, squamous cell Published cavity, NOS; Esophagus Digestive Tongue; Pharynx; Oral Carcinoma, squamous cell Published cavity, NOS; Esophagus Digestive Tongue; Pharynx; Oral Tumor, granular cell, benign Published cavity, NOS; Esophagus Digestive Nonglandular stomach Cyst, squamous Cyst, epithelial Published Digestive Nonglandular stomach; Ectopic tissue Hepatocytes; Pancreas Published Glandular stomach Digestive Nonglandular stomach Atrophy, squamous Published epithelium Digestive Nonglandular stomach Vacuolation, squamous Published epithelium Digestive Nonglandular stomach Apoptosis, squamous Apoptotic cell death Published epithelium Digestive Nonglandular stomach Necrosis, squamous Single cell Oncotic cell death; Oncotic Published epithelium necrosis; Necrosis

Digestive Nonglandular stomach Apoptosis/single cell Cell death Modified necrosis after publication Digestive Nonglandular stomach Erosion/ulcer Published Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Digestive Nonglandular stomach Hyperkeratosis Orthokeratotic; Hyperkeratosis, Published Parakeratotic orthokeratotic may have been identified as Hyperkeratosis; Hyperkeratosis, parakeratotic may have been identified as Parakeratosis Digestive Glandular stomach Dilatation, gland Glandular dilatation; Modified Glandular dilation after publication Digestive Glandular stomach Cyst, glandular Published Digestive Glandular stomach Atrophy Mucosa or specific cell type Published (e.g., chief cell, parietal or mucous cell) Digestive Glandular stomach Vacuolation, epithelium Mucosa or specific cell type Published (e.g., chief cell, parietal or mucous cell) Digestive Glandular stomach Secretion, decreased Modified after publication Digestive Glandular stomach Eosinophilic globules Hyalinosis; Eosinophilic chief Published cells; Eosinophilic change; Eosinophilic droplets

Digestive Glandular stomach Apoptosis Apoptotic cell death Published Digestive Glandular stomach Necrosis, mucosa Single cell Oncotic cell death; Oncotic Published necrosis; Necrosis

Digestive Glandular stomach Apoptosis/single cell Cell death Modified necrosis after publication Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Digestive Glandular stomach Erosion/ulcer Published Digestive Glandular stomach Hypertrophy, mucous cell Published

Digestive Glandular stomach Amyloid Amyloidosis; Amyloid Published deposition Digestive Glandular stomach Mineralization Calcification Published Digestive Nonglandular stomach; Infiltrate Type of inflammatory cell Infiltrate inflammatory; Published Glandular stomach that represents the Infiltrate inflammatory cell; predominant cell type in the Infiltration (plus modifier); infiltrate Infiltration, inflammatory; Infiltration, inflammatory cell

Digestive Nonglandular stomach; Inflammation Type of inflammatory cell Published Glandular stomach that represents the predominant cell type in the infiltrate Digestive Nonglandular stomach; Helicobacter Published Glandular stomach Digestive Nonglandular stomach; Yeast Published Glandular stomach Digestive Nonglandular stomach Hyperplasia, squamous cell Reactive Squamous hyperplasia; Published Squamous cell hyperplasia

Digestive Nonglandular stomach Hyperplasia, basal cell Published Digestive Nonglandular stomach Papilloma, squamous cell Papilloma Published

Digestive Nonglandular stomach Carcinoma, squamous cell Carcinoma epidermoid; Published Carcinoma squamous Digestive Nonglandular stomach Tumor, basal cell, benign Published Digestive Nonglandular stomach Tumor, basal cell, malignant Carcinoma, basal cell Published Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Digestive Glandular stomach Diverticulum Cystic; Atypical Cystic adenomatous Published hyperplasia; Diverticulosis. Diverticulum, atypical, may have been identified as: Atypical cystic hyperplasia; Cystic hyperplasia with growth into the gastric wall; Cystic adenomatous hyperplasia; Herniation atypical; "Pseudoinvasion", atypical; Hamartoma, atypical

Digestive Glandular stomach Hyperplasia, mucosa, focal Atypical Regenerative hyperplasia, Modified focal. Hyperplasia, focal after (mucosa), atypical may have publication been identified as: Adenomatous hyperplasia, Dysplasia, or Gastric intraepithelial neoplasia (GIN)

Digestive Glandular stomach Hyperplasia, mucosa, diffuse Regenerative hyperplasia Modified diffuse; Hypertrophic after gastritis; Mucosal publication hypertrophy Digestive Glandular stomach Hyperplasia, Enterochromaffin-like (ECL) Published neuroendocrine cell cell hyperplasia Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Digestive Glandular stomach Adenoma Polypoid; Papillary; Sessile Polyp; Adenomatous polyp; Published Polypoid adenoma; Exocrine adenoma

Digestive Glandular stomach Adenocarcinoma Tubular; Papillary; Cystic; Carcinoma Published Solid; Scirrhous; Mucinous; Signet ring; Undifferentiated; Mixed Digestive Glandular stomach Tumor, neuroendocrine cell, Enterochromaffin-like cell Published benign tumor; APUDoma [APUD = Amine Precursor Uptake and Decarboxylase]; Intramucosal neuroendocrine cell tumor

Digestive Glandular stomach Tumor, neuroendocrine cell, Neuroendocrine carcinoma; Published malignant Carcinoid; Enterochromaffin- like cell tumor; APUDoma [APUD = amine precursor uptake, decarboxylase]; Intramucosal neuroendocrine cell tumor (benign)

Digestive Glandular stomach Leiomyoma Published Digestive Glandular stomach Leiomyosarcoma Published Digestive Glandular stomach Gastrointestinal stromal Interstitial Cajal cell tumor, Published tumor (GIST), benign benign; Gastrointestinal pacemaker cell tumor, benign Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Digestive Glandular stomach Gastrointestinal stromal Interstitial Cajal cell tumor, Published tumor (GIST), malignant malignant; Gastrointestinal pacemaker cell tumor, malignant

Digestive Duodenum; Jejunum; Ileum; Ectopic tissue Pancreas Published Small intestine, NOS; Cecum; Colon; Rectum; Large intestine, NOS

Digestive Duodenum; Jejunum; Ileum; Cyst, squamous Published Small intestine, NOS; Cecum; Colon; Rectum; Large intestine, NOS

Digestive Duodenum Atrophy, Brunner's glands Modified after publication Digestive Duodenum; Jejunum; Ileum; Atrophy Villous; Mucosal Published Small intestine, NOS; Cecum; Colon; Rectum; Large intestine, NOS

Digestive Duodenum; Jejunum; Ileum; Hypertrophy Villous; Mucosal Hyperplasia mucosa diffuse Published Small intestine, NOS; Cecum; Colon; Rectum; Large intestine, NOS

Digestive Duodenum; Jejunum; Ileum; Paneth cell, decreased Modified Small intestine, NOS after publication Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Digestive Duodenum; Jejunum; Ileum; Hypertrophy, Paneth cell Published Small intestine, NOS

Digestive Cecum; Colon; Rectum; Metaplasia, Paneth cell Published Large intestine, NOS Digestive Duodenum; Jejunum; Ileum; Vacuolation, mucosa Foamy Vacuolar degeneration; Published Small intestine, NOS; Vesicular degeneration Cecum; Colon; Rectum; Large intestine, NOS

Digestive Duodenum Degeneration/necrosis, Published Brunner's glands Digestive Duodenum; Jejunum; Ileum; Lymphangiectasis Lacteal dilatation Published Small intestine, NOS; Cecum; Colon; Rectum; Large intestine, NOS

Digestive Duodenum; Jejunum; Ileum; Syncytia, epithelium Published Small intestine, NOS; Cecum; Colon; Rectum; Large intestine, NOS

Digestive Duodenum; Jejunum; Ileum; Apoptosis Apoptotic cell death Published Small intestine, NOS; Cecum; Colon; Rectum; Large intestine, NOS

Digestive Duodenum; Jejunum; Ileum; Necrosis, mucosa Single cell Oncotic cell death; Oncotic Published Small intestine, NOS; necrosis; Necrosis Cecum; Colon; Rectum; Large intestine, NOS Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Digestive Duodenum; Jejunum; Ileum; Apoptosis/single cell Cell death Modified Small intestine, NOS; necrosis after Cecum; Colon; Rectum; publication Large intestine, NOS

Digestive Duodenum; Jejunum; Ileum; Erosion/ulcer Published Small intestine, NOS; Cecum; Colon; Rectum; Large intestine, NOS

Digestive Duodenum; Jejunum; Ileum; Amyloid Published Small intestine, NOS; Cecum; Colon; Rectum; Large intestine, NOS

Digestive Duodenum; Jejunum; Ileum; Mineralization Calcification Published Small intestine, NOS; Cecum; Colon; Rectum; Large intestine, NOS

Digestive Duodenum; Jejunum; Ileum; Metaplasia, osseous Published Small intestine, NOS; Cecum; Colon; Rectum; Large intestine, NOS

Digestive Duodenum; Jejunum; Ileum; Dilatation Dilation; Megaileus; Published Small intestine, NOS; Cecomegaly; Megacolon Cecum; Colon; Rectum; Large intestine, NOS Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Digestive Duodenum; Jejunum; Ileum; Intussusception Published Small intestine, NOS; Cecum; Colon; Rectum; Large intestine, NOS

Digestive Rectum; Large intestine, Prolapse Published NOS Digestive Duodenum; Jejunum; Ileum; Infiltrate Type of inflammatory cell Infiltrate inflammatory; Published Small intestine, NOS; that represents the Infiltrate inflammatory cell; Cecum; Colon; Rectum; predominant cell type in the Infiltration (plus modifier); Large intestine, NOS infiltrate Infiltration, inflammatory; Infiltration, inflammatory cell

Digestive Duodenum; Jejunum; Ileum; Inflammation Type of inflammatory cell Published Small intestine, NOS; that represents the Cecum; Colon; Rectum; predominant cell type in the Large intestine, NOS inflammation

Digestive Duodenum; Jejunum; Ileum; Parasite Protozoa; Nematode Published Small intestine, NOS; Cecum; Colon; Rectum; Large intestine, NOS

Digestive Duodenum; Jejunum; Ileum; Degeneration, neuron, Modified Small intestine, NOS; myenteric plexus after Cecum; Colon; Rectum; publication Large intestine, NOS Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Digestive Duodenum; Jejunum; Ileum; Diverticulum Cystic; Atypical Cystic adenomatous Published Small intestine, NOS; hyperplasia; Diverticulosis; Cecum; Colon; Rectum; Herniated crypt; Crypt Large intestine, NOS herniation. Diverticulum, atypical, may have been identified as: Atypical cystic hyperplasia; Cystic hyperplasia with growth into the gastric wall; Cystic adenomatous hyperplasia; Herniation, atypical; "Pseudoinvasion", atypical

Digestive Duodenum; Jejunum; Ileum; Hyperplasia, mucosa Avillous; Atypical; Goblet Hyperplasia, regenerative. Published Small intestine, NOS; cell Synonyms for atypical Cecum; Colon; Rectum; hyperplasia may include Large intestine, NOS Dysplasia; Gastrointestinal intraepithelial neoplasia (GIN, mice); Early neoplastic lesion; Atypical crypts; Dysplastic crypts; Dysplastic foci; Aberrant crypt foci

Digestive Duodenum Hyperplasia, Brunner's Published glands Digestive Colon; Rectum; Large Metaplasia, squamous cell Squamous metaplasia Published intestine, NOS Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Digestive Duodenum; Jejunum; Ileum; Adenoma Polypoid; Papillary; Sessile Polyp; Adenomatous polyp Published Small intestine, NOS; Cecum; Colon; Rectum; Large intestine, NOS

Digestive Duodenum; Jejunum; Ileum; Adenocarcinoma Solid; Papillary; Cystic; Carcinoma Published Small intestine, NOS; Scirrhous; Mucinous; Signet Cecum; Colon; Rectum; ring; Mixed; Large intestine, NOS Undifferentiated

Digestive Duodenum Carcinoma, Brunner's glands Published

Digestive Duodenum; Jejunum; Ileum; Leiomyoma Published Small intestine, NOS; Cecum; Colon; Rectum; Large intestine, NOS

Digestive Duodenum; Jejunum; Ileum; Leiomyosarcoma Published Small intestine, NOS; Cecum; Colon; Rectum; Large intestine, NOS

Digestive Duodenum; Jejunum; Ileum; Gastrointestinal stromal Interstitial Cajal cell tumor, Published Small intestine, NOS; tumor (GIST), benign benign; Gastrointestinal Cecum; Colon; Rectum; pacemaker cell tumor, Large intestine, NOS benign

Digestive Duodenum; Jejunum; Ileum; Gastrointestinal stromal Interstitial Cajal cell tumor, Published Small intestine, NOS; tumor (GIST), malignant malignant; Gastrointestinal Cecum; Colon; Rectum; pacemaker cell tumor, Large intestine, NOS malignant Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Digestive Submandibular gland; Ectopic tissue Parotid gland; Published Sublingual gland; Parotid Submandibular gland; gland; Salivary gland, NOS Sublingual gland

Digestive Submandibular gland; Vacuolation Foamy Hydropic change; Cloudy Published Sublingual gland; Parotid swelling; Hydropic gland; Salivary gland, NOS degeneration; Fatty degeneration; Lipidosis; Lipid accumulation Digestive Submandibular gland; Accumulation, adipocytes Adipocyte accumulation; Published Sublingual gland; Parotid Lipomatosis gland; Salivary gland, NOS

Digestive Submandibular gland; Apoptosis Apoptotic cell death Published Sublingual gland; Parotid gland; Salivary gland, NOS

Digestive Submandibular gland; Necrosis Single cell Oncotic cell death; Oncotic Published Sublingual gland; Parotid necrosis; Necrosis gland; Salivary gland, NOS

Digestive Submandibular gland; Apoptosis/single cell Cell death Modified Sublingual gland; Parotid necrosis after gland; Salivary gland, NOS publication

Digestive Submandibular gland; Secretion, decreased, acinar Degranulation, acinar cell Modified Sublingual gland; Parotid cell after gland; Salivary gland, NOS publication Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Digestive Submandibular gland Secretion, decreased, Feminization of the granular Modified granular duct duct; Degranulation granular after duct publication

Digestive Submandibular gland Granules increased, granular Masculinization of the Published duct granular duct Digestive Submandibular gland; Atrophy Published Sublingual gland; Parotid gland; Salivary gland, NOS

Digestive Submandibular gland; Mineralization Calcification Published Sublingual gland; Parotid gland; Salivary gland, NOS

Digestive Submandibular gland; Pigment Pigmentation; Pigment Published Sublingual gland; Parotid deposition; Endogenous gland; Salivary gland, NOS pigmentation

Digestive Submandibular gland; Amyloid Amyloidosis; Amyloid Published Sublingual gland; Parotid deposition gland; Salivary gland, NOS

Digestive Submandibular gland; Infiltrate Type of inflammatory cell Infiltrate inflammatory; Published Sublingual gland; Parotid that represents the Infiltrate inflammatory cell; gland; Salivary gland, NOS predominant cell type in the Infiltration (plus modifier); infiltrate Infiltration, inflammatory; Infiltration, inflammatory cell Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Digestive Submandibular gland; Inflammation Type of inflammatory cell Sialadenitis Published Sublingual gland; Parotid that represents the gland; Salivary gland, NOS predominant cell type in the inflammation Digestive Submandibular gland; Edema Published Sublingual gland; Parotid gland; Salivary gland, NOS

Digestive Submandibular gland; Hemorrhage Published Sublingual gland; Parotid gland; Salivary gland, NOS

Digestive Submandibular gland; Calculus, duct Sialoliths; Sialolithiasis; Modified Sublingual gland; Parotid Salivary concretion; Duct after gland; Salivary gland, NOS concretion; Salivary calculus; publication Inspissated material

Digestive Submandibular gland; Ectasia, duct Dilatation; Luminal Published Sublingual gland; Parotid distension gland; Salivary gland, NOS

Digestive Submandibular gland; Fibrosis Interstitial fibrosis Published Sublingual gland; Parotid gland; Salivary gland, NOS

Digestive Submandibular gland; Hypertrophy, acinar cell Cytomegaly Published Sublingual gland; Parotid gland; Salivary gland, NOS Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Digestive Parotid gland Focus, hypertrophic, Focus, basophilic; Basophilic Published basophilic focus; Basophilic hypertrophic focus; Focus, basophilic, hypertrophic; Focus of cellular alteration

Digestive Submandibular gland; Metaplasia, acinar cell Published Sublingual gland; Parotid gland; Salivary gland, NOS

Digestive Submandibular gland; Metaplasia, squamous cell Squamous metaplasia; Published Sublingual gland; Parotid Ductal squamous metaplasia gland; Salivary gland, NOS

Digestive Submandibular gland; Hyperplasia Acinar; Ductal; Reactive; Published Sublingual gland; Parotid Atypical gland; Salivary gland, NOS

Digestive Submandibular gland; Adenoma Acinar; Tubular; Papillary; Published Sublingual gland; Parotid Solid; Mixed acinar/tubular gland; Salivary gland, NOS

Digestive Submandibular gland; Adenocarcinoma Acinar; Tubular; Papillary; Published Sublingual gland; Parotid Solid; Mixed gland; Salivary gland, NOS acinar/tubular/solid

Digestive Submandibular gland; Carcinoma, squamous cell Carcinoma, epidermoid Published Sublingual gland; Parotid gland; Salivary gland, NOS Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Digestive Submandibular gland; Tumor, mixed, benign Tumor, composite, benign Published Sublingual gland; Parotid gland; Salivary gland, NOS

Digestive Submandibular gland; Tumor, mixed, malignant Tumor, composite, Published Sublingual gland; Parotid malignant gland; Salivary gland, NOS

Digestive Submandibular gland; Myoepithelioma, malignant Published Sublingual gland; Parotid gland; Salivary gland, NOS

Digestive Pancreas (exocrine) Ectopic tissue Heterotopia Published Digestive Pancreas (exocrine) Vacuolation, acinar cell Foamy Hydropic change; Cloudy Published swelling; Hydropic degeneration; Fatty degeneration; Lipidosis; Lipid accumulation; Vacuolation epithelial Digestive Pancreas (exocrine) Accumulation, adipocytes Adipocyte accumulation; Published Lipomatosis; Fatty infiltrate

Digestive Pancreas (exocrine) Eosinophilic globules Hyalinosis; Eosinophilic Published change Digestive Pancreas (exocrine) Autophagic vacuoles, acinar Autophagy, acinar cell Published cell Digestive Pancreas (exocrine) Apoptosis Apoptotic cell death Published Digestive Pancreas (exocrine) Necrosis Single cell Oncotic cell death; Oncotic Published necrosis; Necrosis Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Digestive Pancreas (exocrine) Apoptosis/single cell Cell death Modified necrosis after publication Digestive Pancreas (exocrine) Secretion, decreased, acinar Modified cell after publication Digestive Pancreas (exocrine) Atrophy, acinar cell Published Digestive Pancreas (exocrine) Mineralization Calcification Published Digestive Pancreas (exocrine) Amyloid Amyloidosis; Amyloid Published deposition Digestive Pancreas (exocrine) Pigment Pigment deposition; Published Pigmentation; Endogenous pigmentation; Exogenous pigment deposition

Digestive Pancreas (exocrine) Infiltrate Type of inflammatory cell Infiltrate inflammatory; Published that represents the Infiltrate inflammatory cell; predominant cell type in the Infiltration (plus modifier); infiltrate Infiltration, inflammatory; Infiltration, inflammatory cell

Digestive Pancreas (exocrine) Inflammation Type of inflammatory cell Pancreatitis Published that represents the predominant cell type in the inflammation Digestive Pancreas (exocrine) Inflammation, vessel Arteritis; Vasculitis; Published Polyarteritis Digestive Pancreas (exocrine) Edema Published Digestive Pancreas (exocrine) Hemorrhage Published Digestive Pancreas (exocrine) Hypertrophy, acinar cell Cytomegaly Published Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Digestive Pancreas (exocrine) Halos, peri-insular, Eosinophilic change; Focal Published increased eosinophilic hypertrophic cells; Hypertrophy, peri- insular

Digestive Pancreas (exocrine) Halos, peri-insular, Published decreased Digestive Pancreas (exocrine) Focus, basophilic Basophilic-atypical acinar Published cell focus; Focal cellular change; Focal basophilic cellular change; Cytological alteration Digestive Pancreas (exocrine) Metaplasia, hepatocyte Modified after publication Digestive Pancreas (exocrine) Metaplasia, ductule Tubular complexes Modified after publication Digestive Pancreas (exocrine) Ectasia, duct Dilatation; Luminal Published distension; Cystic duct; Ductal cyst Digestive Pancreas (exocrine) Fibrosis Interstitial fibrosis Published Digestive Pancreas (exocrine) Hyperplasia, acinar cell Focal; Diffuse Focus, eosinophilic Published Digestive Pancreas (exocrine) Hyperplasia, ductal cell Published Digestive Pancreas (exocrine) Adenoma, acinar cell Published Digestive Pancreas (exocrine) Adenoma, ductal cell Published Digestive Pancreas (exocrine) Adenocarcinoma, acinar cell Published

Digestive Pancreas (exocrine) Adenocarcinoma, ductal cell Published

Cardiovascular System Heart Cardiomegaly Published Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Cardiovascular System Heart Hypertrophy, cardiomyocyte Published

Cardiovascular System Heart Degeneration, Hyaline; Vacuolar; Fatty Published cardiomyocyte Cardiovascular System Heart Degeneration/necrosis, Published cardiomyocyte Cardiovascular System Heart Necrosis, cardiomyocyte Coagulative; Lytic; Published Contraction band (Zenker's)

Cardiovascular System Heart Necrosis/infiltrate Modified after publication Cardiovascular System Heart Infiltrate/fibrosis Modified after publication Cardiovascular System Heart Rodent progressive Murine progressive Added after cardiomyopathy cardiomyopathy publication

Cardiovascular System Heart Vacuolation, cardiomyocyte Published

Cardiovascular System Heart Apoptosis, cardiomyocyte Published

Cardiovascular System Heart Infarct Modified after publication Cardiovascular System Heart Fibrosis, myocardium Published Cardiovascular System Heart Infiltrate, inflammatory cell Modified after publication Cardiovascular System Heart Edema, myocardium Published Cardiovascular System Heart Thrombus, atrium Published Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Cardiovascular System Heart Mineralization, Published cardiomyocyte or myocardium Cardiovascular System Heart Pigment, cardiomyocyte or Published myocardium Cardiovascular System Heart Amyloid Modified after publication Cardiovascular System Heart valves Degeneration, myxomatous, Published valve Cardiovascular System Heart valves Proliferation, stroma, valve Modified after publication Cardiovascular System Heart valves Inflammation, valve Published Cardiovascular System Heart valves Angiectasis, valve Published Cardiovascular System Blood vessels; Aorta Hypertrophy, endothelium Modified after publication Cardiovascular System Blood vessels; Aorta Hypertrophy, media or wall, Modified artery after publication Cardiovascular System Blood vessels; Aorta Hemorrhage, media or wall, Modified artery after publication Cardiovascular System Blood vessels; Aorta Degeneration/necrosis, Modified media or wall, artery after publication Cardiovascular System Blood vessels; Aorta Necrosis/inflammation, Modified media or wall, artery after publication Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Cardiovascular System Blood vessels; Aorta Inflammation, media or Modified wall, artery after publication Cardiovascular System Blood vessels; Aorta Vacuolation, media or Modified adventitia, artery after publication Cardiovascular System Blood vessels; Aorta Infiltrate, inflammatory cell, Modified perivascular after publication Cardiovascular System Blood vessels; Aorta Fibrosis, perivascular Published Cardiovascular System Blood vessels; Aorta Intimal thickening, acellular, Published artery Cardiovascular System Blood vessels; Aorta Mineralization, media or Modified wall, artery after publication Cardiovascular System Blood vessels; Aorta Aneurysm, artery or aortic Dilated; Dissecting; Aortic Published

Cardiovascular System Blood vessels; Aorta Angiectasis Published Cardiovascular System Blood vessels; Aorta Thrombus Published Cardiovascular System Blood vessels; Aorta Embolus Published Cardiovascular System Blood vessels; Aorta Amyloid, media or wall, Modified artery after publication Cardiovascular System Blood vessels; Aorta Intramural plaque, artery Published Cardiovascular System Heart Hyperplasia, Schwann cell, Published subendocardium Cardiovascular System Heart Hyperplasia, mesothelium, Modified epicardium or pericardium after publication

Cardiovascular System Blood vessels; Aorta Proliferation, intimal, artery Published or vein Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Cardiovascular System Blood vessels; Aorta Hyperplasia, Modified hemangioendothelium after publication Cardiovascular System Blood vessels; Aorta Hyperplasia, angiomatous Published

Cardiovascular System Heart Schwannoma, endocardial Published

Cardiovascular System Heart Schwannoma, intramural Published Cardiovascular System Heart Mesothelioma, epicardium Epithelioid type; Published or pericardium Sarcomatoid type; Biphasic type Cardiovascular System Heart Mesothelioma, atriocaval Published

Cardiovascular System Heart Paraganglioma Published Cardiovascular System Blood vessels; Aorta Hemangioma Capillary; Cavernous Published Cardiovascular System Blood vessels; Aorta Hemangiosarcoma Published Skeletal Tissues Femur; Sternum; Vertebrae; Fibro-osseous lesion (FOL) Published Bone, NOS Skeletal Tissues Femur; Sternum; Vertebrae; Fibrous osteodystrophy Published Bone, NOS (FOD) Skeletal Tissues Femur; Sternum; Vertebrae; Bone, increased, trabeculae Modified Bone, NOS and/or cortex after publication Skeletal Tissues Femur; Sternum; Vertebrae; Osteoid, increased Modified Bone, NOS after publication Skeletal Tissues Femur; Sternum; Vertebrae; Osteoblastic surface, Modified Bone, NOS increased after publication Skeletal Tissues Femur; Sternum; Vertebrae; Osteoclasts, increased Modified Bone, NOS after publication Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Skeletal Tissues Femur; Sternum; Vertebrae; Eroded surface, increased Modified Bone, NOS after publication Skeletal Tissues Femur; Sternum; Vertebrae; Bone, decreased, trabeculae Modified Bone, NOS and/or cortex after publication Skeletal Tissues Femur; Sternum; Vertebrae; Cyst, bone Published Bone, NOS Skeletal Tissues Femur; Sternum; Vertebrae; Necrosis Published Bone, NOS Skeletal Tissues Femur; Sternum; Vertebrae; Fracture Published Bone, NOS Skeletal Tissues Femur; Sternum; Vertebrae; Physis, increased thickness Modified Bone, NOS after publication Skeletal Tissues Femur; Sternum; Vertebrae; Physeal dysplasia Added after Bone, NOS publication

Skeletal Tissues Femur; Sternum; Vertebrae; Physis, decreased thickness Modified Bone, NOS after publication Skeletal Tissues Femur; Sternum; Vertebrae; Growth plate closed Published Bone, NOS Skeletal Tissues Femur; Sternum; Vertebrae; Hyperplasia, chondrocyte Published Bone, NOS Skeletal Tissues Femur; Sternum; Vertebrae; Hyperplasia, osteoblast, Published Bone, NOS focal Skeletal Tissues Femur; Sternum; Vertebrae; Osteoma Published Bone, NOS Skeletal Tissues Femur; Sternum; Vertebrae; Osteoblastoma Published Bone, NOS Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Skeletal Tissues Femur; Sternum; Vertebrae; Osteofibroma Published Bone, NOS Skeletal Tissues Femur; Sternum; Vertebrae; Osteosarcoma Published Bone, NOS Skeletal Tissues Femur; Sternum; Vertebrae; Fibrosarcoma, osteogenic Modified Bone, NOS after publication Skeletal Tissues Femur; Sternum; Vertebrae; Chondroma Published Bone, NOS Skeletal Tissues Femur; Sternum; Vertebrae; Chondrosarcoma Published Bone, NOS Skeletal Tissues Femur; Sternum; Vertebrae; Osteochondroma Published Bone, NOS Skeletal Tissues Vertebrae; Bone, NOS Chordoma Published Skeletal Tissues Joint Inflammation Published Skeletal Tissues Joint Osteophyte Published Skeletal Tissues Joint Degeneration, Modified chondromucinous after publication Skeletal Tissues Joint Degenerative joint disease Published (DJD) Skeletal Tissues Joint Hyperplasia, synovial cell Published Skeletal Tissues Joint Sarcoma, synovial Modified after publication Skeletal Tissues Tooth Degeneration Published Skeletal Tissues Tooth Necrosis Published Skeletal Tissues Tooth Periodontal pocket Published Skeletal Tissues Tooth Dentin niches Published Skeletal Tissues Tooth Dentin, decreased Published Skeletal Tissues Tooth Dentin matrix alteration Published Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Skeletal Tissues Tooth Dental dysplasia Modified after publication Skeletal Tissues Tooth Fracture Published Skeletal Tissues Tooth Resorption Published Skeletal Tissues Tooth Denticle Modified after publication Skeletal Tissues Tooth Pulp concretion Published Skeletal Tissues Tooth Cyst Modified after publication Skeletal Tissues Tooth Thrombus Published Skeletal Tissues Tooth Odontoma Published Skeletal Tissues Tooth Ameloblastic odontoma Published Skeletal Tissues Tooth Ameloblastoma Published Skeletal Tissues Tooth Fibroma, odontogenic Modified after publication Skeletal Tissues Tooth Fibroma, Modified cementifying/ossifying after publication Skeletal Tissues Tooth Tumor, odontogenic, benign Published

Skeletal Tissues Tooth Tumor, odontogenic, Published malignant Endocrine Pituitary gland Aberrant craniopharyngeal Published structures

Endocrine Pituitary gland Angiectasis Hemangiectasis; Published Hemangiectasia; Teleangiectasis Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Endocrine Pituitary gland Aplasia/hypoplasia Published Endocrine Pituitary gland Atrophy Published Endocrine Pituitary gland Cyst Published Endocrine Pituitary gland Fibrosis Published Endocrine Pituitary gland Gliosis, pars nervosa Published Endocrine Pituitary gland Hemorrhage Published Endocrine Pituitary gland Hypertrophy, pars Published intermedia Endocrine Pituitary gland Hypertrophy, pars distalis Published

Endocrine Pituitary gland Infiltrate, inflammatory cell Published

Endocrine Pituitary gland Inflammation Published Endocrine Pituitary gland Metaplasia, osseous Modified after publication Endocrine Pituitary gland Persistent Rathke's pouch Published

Endocrine Pituitary gland Pigment Hemosiderin; Lipofuscin Published Endocrine Pituitary gland Pseudocyst Published Endocrine Pituitary gland Thrombus Published Endocrine Pituitary gland Vacuolation Published Endocrine Pituitary gland Hyperplasia, pars distalis Published Endocrine Pituitary gland Hyperplasia, pars intermedia Published

Endocrine Pituitary gland Adenoma, pars distalis Adenoma, pituitary Published Endocrine Pituitary gland Adenoma, pars intermedia Adenoma, pituitary Published

Endocrine Pituitary gland Ganglioneuroma, benign Gangliocytoma; Ganglion Published cell tumor; Ganglioglioma

Endocrine Pituitary gland Pituicytoma, benign Published Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Endocrine Pituitary gland Pituicytoma, malignant Published Endocrine Pituitary gland Carcinoma, pars distalis Carcinoma, pituitary Published Endocrine Pituitary gland Carcinoma, pars intermedia Carcinoma, pituitary Published

Endocrine Pituitary gland Craniopharyngioma, benign Published

Endocrine Pituitary gland Craniopharyngioma, Published malignant Endocrine Pineal gland Fibrosis Published Endocrine Pineal gland Infiltrate, inflammatory cell Published

Endocrine Pineal gland Mineralization Published Endocrine Pineal gland Striated muscle fibers Published Endocrine Pineal gland Vacuolation Published Endocrine Pineal gland Pinealoma, benign Pineocytoma; Benign tumor Published of pineal gland; Pineal parenchymal tumor (PPT)

Endocrine Pineal gland Pinealoma, malignant Pineoblastoma; Malignant Published tumor of pineal gland; Primitive neuroectodermal tumor of central nervous system (cPNET)

Endocrine Thyroid gland Amyloid Amyloidosis; Amyloid Published deposition Endocrine Thyroid gland Atrophy Published Endocrine Thyroid gland Colloid alteration Colloidal alteration; Altered Published colloid; Basophilic deposits

Endocrine Thyroid gland Cystic follicle Published Endocrine Thyroid gland Ectopic tissue, thymus Published Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Endocrine Thyroid gland Ectopic tissue, thyroid Published Endocrine Thyroid gland Hypertrophy, follicular cell Published

Endocrine Thyroid gland Dilatation, follicle, diffuse Follicular dilatation; Colloid Modified goiter; Increased colloid after publication Endocrine Thyroid gland Infiltrate, inflammatory cell Published

Endocrine Thyroid gland Inflammation Thyroiditis Published Endocrine Thyroid gland Mineralization Calcification Published Endocrine Thyroid gland Persistent thyroglossal duct Developmental cyst; Published Thyroglossal duct cyst Endocrine Thyroid gland Pigment Published Endocrine Thyroid gland Thyroid dysplasia Vacuolar change; Thyroid Published epithelial edema Endocrine Thyroid gland Cyst, ultimobranchial Developmental cyst; Modified Squamous epithelial cyst after publication Endocrine Thyroid gland Hyperplasia, follicular cell Focal; Cystic; Diffuse Published

Endocrine Thyroid gland Adenoma, follicular cell Follicular; Cystic; Papillary; Published Solid Endocrine Thyroid gland Carcinoma, follicular cell Follicular; Papillary; Published Pleomorphic; Solid Endocrine Thyroid gland Hyperplasia, C-cell Focal; Diffuse; Complex type Hyperplasia, light cell; Published Hyperplasia, parafollicular cell Endocrine Thyroid gland Adenoma, C-cell Ganglioneuroma type; Adenoma, parafollicular cell; Published Complex type Tumor, C-cell, benign; Adenoma, light cells Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Endocrine Thyroid gland Carcinoma, C-cell Carcinoma, clear cell; Published Carcinoma, light cell; Carcinoma, medullary; Carcinoma, parafollicular cell; Tumor, C-cell, malignant Endocrine Parathyroid gland Amyloid Amyloidosis; Amyloid Published deposition Endocrine Parathyroid gland Angiectasis Hemangiectasis; Published Hemangiectasia; Teleangiectasis Endocrine Parathyroid gland Atrophy Chief cell atrophy Published Endocrine Parathyroid gland Cyst Kursteiner's cyst; Published Kursteiner's duct cyst Endocrine Parathyroid gland Ectopic tissue, parathyroid Published

Endocrine Parathyroid gland Ectopic tissue, thymus Published Endocrine Parathyroid gland Fibrosis Published Endocrine Parathyroid gland Hypertrophy Diffuse; Focal Published Endocrine Parathyroid gland Infiltrate, inflammatory cell Published

Endocrine Parathyroid gland Inflammation Parathyroiditis Published Endocrine Parathyroid gland Multinucleated giant cells Syncytial giant cells Modified after publication Endocrine Parathyroid gland Hyperplasia Focal; Diffuse Published Endocrine Parathyroid gland Adenoma Published Endocrine Parathyroid gland Carcinoma Published Endocrine Adrenal gland Amyloid Amyloidosis; Amyloid Published degeneration; Amyloid infiltration Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Endocrine Adrenal gland Angiectasis Peliosis; Hemangiectasis; Published Hemangiectasia; Telangiectasis; Telangiectasia Endocrine Adrenal gland Atrophy, cortex Cortical atrophy Modified after publication Endocrine Adrenal gland Cyst, cortex Modified after publication Endocrine Adrenal gland Degeneration, cystic Cystic change Published Endocrine Adrenal gland Ectopic tissue, Accessory cortical tissue, Published adrenocortical adrenal extracortical nodule, hamartoma, adrenocortical rest Endocrine Adrenal gland Fibrosis Published Endocrine Adrenal gland Hematopoiesis, Hematopoietic cell Published extramedullary proliferation; EMH Endocrine Adrenal gland Hemorrhage Published Endocrine Adrenal gland Hypertrophy, cortex, diffuse Modified after publication Endocrine Adrenal gland Hypertrophy, cortex, focal Modified after publication Endocrine Adrenal gland Infiltrate, inflammatory cell Published

Endocrine Adrenal gland Inflammation Adrenalitis Published Endocrine Adrenal gland Mineralization Calcification Published Endocrine Adrenal gland Necrosis Published Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Endocrine Adrenal gland Metaplasia, osseous Modified after publication Endocrine Adrenal gland Pigment Lipofuscin(osis); Ceroid; Published Brown atrophy; Brown degeneration; Wear-tear pigment Endocrine Adrenal gland Thrombus Published Endocrine Adrenal gland Vacuolation, cortex, Fatty change; Lipidosis; Modified increased, diffuse Lipoid hyperplasia after publication Endocrine Adrenal gland Vacuolation, cortex, Focal fatty change; Lipidosis; Modified increased, focal Degeneration vacuolar; after Clear cell focus publication Endocrine Adrenal gland Vacuolation, cortex, Diffuse lipid depletion; Modified decreased, diffuse Diffuse hypovacuolation after publication Endocrine Adrenal gland Vacuolation, cortex, Basophilic focus; Modified decreased, focal Eosinophilic focus; Focus of after cytoplasmic alteration publication Endocrine Adrenal gland Persistent X-zone Impaired X-Zone involution Published

Endocrine Adrenal gland Hyperplasia, cortex, diffuse Modified after publication Endocrine Adrenal gland Hyperplasia, cortex, focal Modified after publication Endocrine Adrenal gland Adenoma, cortex Modified after publication Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Endocrine Adrenal gland Carcinoma, cortex Modified after publication Endocrine Adrenal gland Hyperplasia, subcapsular cell Type A; Type B; Mixed type Published

Endocrine Adrenal gland Adenoma, subcapsular cell Type A; Type B; Mixed type Published

Endocrine Adrenal gland Carcinoma, subcapsular cell Type A; Type B; Mixed type Published

Endocrine Adrenal gland Hyperplasia, medulla, Modified diffuse after publication Endocrine Adrenal gland Hyperplasia, medulla, focal Nodular hyperplasia Modified after publication Endocrine Adrenal gland Pheochromocytoma, benign Tumor, medullary, benign, Published pheochromocytoma type

Endocrine Adrenal gland Pheochromocytoma, Tumor, medullary, Published malignant malignant, pheochromocytoma type Endocrine Adrenal gland Pheochromocytoma, Complex Published complex, benign pheochromocytoma, benign; Tumor, medullary, benign, complex pheochromocytoma type

Endocrine Adrenal gland Pheochromocytoma, Ganglioneuroblastoma; Published complex, malignant Tumor, medullary, malignant, complex pheochromocytoma type Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Endocrine Adrenal gland Ganglioneuroma, benign Tumor, medullary, benign, Published ganglioneuroma type

Endocrine Adrenal gland Neuroblastoma, malignant Ganglioneuroblastoma; Published Sympathicoblastoma; Tumor, medullary, malignant Endocrine Adrenal gland Myelolipoma Published Endocrine Pancreas (endocrine) Amyloid, islet Amyloidosis; Amyloid Published deposition Endocrine Pancreas (endocrine) Angiectasis, islet Hemangiectasis; Published Hemangiectasia; Teleangiectasis; Telangiectasia Endocrine Pancreas (endocrine) Apoptosis, islet cell Cell death Published Endocrine Pancreas (endocrine) Atrophy, islet cell Published Endocrine Pancreas (endocrine) Degranulation, islet cell Cytoplasmic pallor Published Endocrine Pancreas (endocrine) Fibrosis, islet Published Endocrine Pancreas (endocrine) Hemorrhage, islet Published Endocrine Pancreas (endocrine) Hypertrophy, islet cell Published Endocrine Pancreas (endocrine) Infiltrate, inflammatory cell Published

Endocrine Pancreas (endocrine) Inflammation Insulitis; Islitis; Isletitis Published Endocrine Pancreas (endocrine) Metaplasia, hepatocyte Published Endocrine Pancreas (endocrine) Single cell necrosis Single cell necrosis; Cell Modified death; Oncotic cell death; after Oncotic necrosis publication Endocrine Pancreas (endocrine) Pigment, islet Published Endocrine Pancreas (endocrine) Vacuolation, islet cell Published Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Endocrine Pancreas (endocrine) Hyperplasia, islet cell Elongated or irregular islet Published type; Focal (single islet); Multifocal (several islets); Diffuse (most islets)

Endocrine Pancreas (endocrine) Adenoma, islet cell Adenoma, endocrine Published pancreas; Tumor, islet cell, benign; Insulinoma, benign

Endocrine Pancreas (endocrine) Adenoma, acinar-islet cell Mixed acinar-islet cell Published tumor, benign; Mixed pancreatic tumor, benign Endocrine Pancreas (endocrine) Carcinoma, islet cell Adenocarcinoma, endocrine Published pancreas; Tumor, islet cell, malignant; Insulinoma, malignant

Endocrine Pancreas (endocrine) Carcinoma, acinar-islet cell Mixed exocrine-endocrine Published carcinoma Special Senses Eye Apoptosis Published Special Senses Ear, external Keratoacanthoma Questionable

Special Senses Eye Atrophy Published Special Senses Ear, external Hyperplasia, epidermis Questionable

Special Senses Eye Fibroplasia Published Special Senses Ear, external Papilloma, squamous cell Questionable

Special Senses Eye Fibrosis Published Special Senses Ear, external Carcinoma, squamous cell Questionable Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Special Senses Eye Infiltrate, inflammatory cell Published

Special Senses Eye Inflammation Published Special Senses Eye Mitotic figures, increased Modified after publication Special Senses Eye Single cell necrosis Modified after publication Special Senses Eye Neovascularization Published Special Senses Eyelid Infiltrate, inflammatory cell, Published eyelid Special Senses Eyelid Inflammation, eyelid Published Special Senses Eyelid Atrophy, Meibomian gland Published

Special Senses Eyelid Infiltrate, inflammatory cell, Published Meibomian gland Special Senses Eyelid Inflammation, Meibomian Published gland Special Senses Eyelid Inflammation, Published granulomatous, Meibomian gland Special Senses Cornea; Conjunctiva Atrophy, epithelium Published Special Senses Cornea Attenuation, endothelium Published

Special Senses Cornea; Conjunctiva Cyst, inclusion Published Special Senses Cornea; Conjunctiva Edema Published Special Senses Cornea; Conjunctiva Erosion/ulcer Published Special Senses Cornea Fibroplasia Published Special Senses Cornea Fibrosis, stroma Published Special Senses Cornea Hypertrophy, Descemet's Published membrane Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Special Senses Cornea; Conjunctiva Infiltrate, inflammatory cell, Published conjunctiva Special Senses Cornea; Conjunctiva Inflammation Published Special Senses Cornea Keratinization Published Special Senses Cornea Mineralization Published Special Senses Cornea Neovascularization Published Special Senses Cornea; Conjunctiva Pigment Published Special Senses Cornea Vacuolation, epithelium or Published endothelium Special Senses Filtration angle/Trabecular Malformation, filtration Published meshwork angle

Special Senses Filtration angle/Trabecular Narrowed filtration angle Published meshwork

Special Senses Anterior chamber; Aqueous Inflammation Published humor Special Senses Anterior chamber; Aqueous Proteineous fluid Published humor Special Senses Uvea; Iris; Ciliary body Adhesion, iris Published Special Senses Uvea; Iris; Ciliary body Hypoplasia, ciliary body Published Special Senses Uvea; Iris; Ciliary body Malformation, iris Published Special Senses Uvea; Iris; Ciliary body Persistent pupillary Published membrane Special Senses Uvea; Iris; Ciliary body Atrophy, iris Published Special Senses Uvea; Ciliary body Atrophy, ciliary body Published Special Senses Uvea; Iris; Ciliary body Congestion Published Special Senses Uvea; Iris; Ciliary body Infiltrate, inflammatory cell Published

Special Senses Uvea; Iris; Ciliary body Inflammation Published Special Senses Uvea; Iris; Ciliary body Pigment, Published increased/decreased, iris Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Special Senses Uvea; Iris; Ciliary body Vacuolation, cytoplasm, Modified epithelium after publication Special Senses Lens Degeneration, lens fiber Published Special Senses Lens Dislocation, lens, anterior or Published posterior Special Senses Lens Fibroplasia, lens epithelium Published

Special Senses Lens Hypertrophy, lens capsule Published

Special Senses Lens Hypertrophy, lens Published epithelium Special Senses Lens Hypertrophy, lens fiber Published Special Senses Lens Inflammation, lens Published Special Senses Lens Mineralization, lens fiber Published Special Senses Lens Necrosis, lens epithelium Published

Special Senses Lens Rupture, lens capsule Published Special Senses Lens Vacuolation, lens epithelium Published or lens fiber Special Senses Vitreous Aplasia, vitreous Modified after publication Special Senses Vitreous Persistent hyaloid vessels Published

Special Senses Vitreous Persistent hyperplastic Published primary vitreous Special Senses Vitreous Fibroplasia; Vitreous fibrosis Published

Special Senses Vitreous Hemorrhage Published Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Special Senses Vitreous Pigment, macrophage, Modified hemosiderin after publication Special Senses Vitreous Infiltrate, inflammatory cell Published

Special Senses Vitreous Inflammation Published Special Senses Vitreous Metaplasia, bone or Published cartilage Special Senses Vitreous Mineralization, vitreous Published Special Senses Retina Retinal rosettes Published Special Senses Retina Retinal folds Published Special Senses Retina Atrophy, inner retina Modified after publication Special Senses Retina Atrophy, outer retina Modified after publication Special Senses Retina Atrophy, retina, global Modified after publication Special Senses Retina Detachment, retina Published Special Senses Retina Displacement, Published photoreceptor nuclei Special Senses Retina Fibroplasia, retina or Modified epiretina after publication Special Senses Retina Glial cells, increased number Modified after publication Special Senses Retina Infiltrate, inflammatory cell Published

Special Senses Retina Inflammation Published Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Special Senses Retina Mineralization Published Special Senses Retina Myelin, increased Published Special Senses Retina Single cell necrosis Modified after publication Special Senses Retina Pigment, increased Published Special Senses Retina Vacuolation, cytoplasm Modified after publication Special Senses Retina Vacuolation, extracellular Published

Special Senses Retina Arteriolar loop, pre-retina Modified after publication Special Senses Retina Hemorrhage Published Special Senses Uvea; Choroid Neovascularization Published Special Senses Retina Neovascularization Published Special Senses Optic nerve Atrophy Published Special Senses Optic nerve Degeneration, axon Modified after publication Special Senses Optic nerve Demyelination Published Special Senses Optic nerve Glial cells, increased number Modified after publication Special Senses Optic nerve Infiltrate, inflammatory cell Published

Special Senses Optic nerve Inflammation Published Special Senses Optic nerve Vacuolation Published Special Senses Retinal pigment epithelium Atrophy Published (RPE) Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Special Senses Retinal pigment epithelium Deposits, extracellular Published (RPE) matrix, subretina Special Senses Retinal pigment epithelium Fibroplasia, subretina Modified (RPE) after publication Special Senses Retinal pigment epithelium Hypertrophy, RPE Published (RPE) Special Senses Retinal pigment epithelium Inclusions (intracytoplasmic Published (RPE) accumulation), RPE

Special Senses Retinal pigment epithelium Necrosis Published (RPE) Special Senses Retinal pigment epithelium Pigment, decreased Modified (RPE) after publication Special Senses Retinal pigment epithelium Pigment, increased Modified (RPE) after publication Special Senses Retinal pigment epithelium Polarity, loss, RPE Published (RPE) Special Senses Sclera Atrophy Published Special Senses Sclera Infiltrate, inflammatory cell Published

Special Senses Sclera Inflammation Published Special Senses Sclera Metaplasia, bone or Published cartilage Special Senses Cornea; Conjunctiva Dermoid, ocular Published Special Senses Cornea; Conjunctiva Hyperplasia/hypertrophy, Published endothelium Special Senses Cornea; Conjunctiva Hyperplasia, squamous cell Published Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Special Senses Filtration angle/Trabecular Proliferation, trabecular Published meshwork meshwork (TM)

Special Senses Uvea Hyperplasia, melanocyte Published Special Senses Lens Hyperplasia, lens epithelium Published

Special Senses Retinal pigment epithelium Hyperplasia, RPE Published (RPE) Special Senses Cornea; Conjunctiva Papilloma, squamous cell Published

Special Senses Cornea; Conjunctiva Carcinoma, squamous cell Published

Special Senses Uvea Leiomyoma, uvea Modified after publication Special Senses Uvea Melanoma, uvea Modified after publication Special Senses Uvea Schwannoma, intraocular Published Special Senses Optic nerve Meningioma, benign Published Special Senses Optic nerve Meningioma, malignant Published Special Senses Optic nerve Schwannoma, benign Published Special Senses Optic nerve Schwannoma, malignant Published Special Senses Optic nerve Glioma (Astrocytoma), Published benign Special Senses Harderian gland; Apoptosis Published Extraorbital lacrimal gland; Intraorbital lacrimal gland; Lacrimal gland, NOS Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Special Senses Harderian gland; Single cell necrosis Modified Extraorbital lacrimal gland; after Intraorbital lacrimal gland; publication Lacrimal gland, NOS

Special Senses Harderian gland; Degeneration Published Extraorbital lacrimal gland; Intraorbital lacrimal gland; Lacrimal gland, NOS

Special Senses Harderian gland; Regeneration Published Extraorbital lacrimal gland; Intraorbital lacrimal gland; Lacrimal gland, NOS

Special Senses Harderian gland; Hypertrophy Published Extraorbital lacrimal gland; Intraorbital lacrimal gland; Lacrimal gland, NOS

Special Senses Harderian gland; Atrophy Published Extraorbital lacrimal gland; Lacrimal gland, NOS

Special Senses Harderian gland; Hemorrhage Published Extraorbital lacrimal gland; Intraorbital lacrimal gland; Lacrimal gland, NOS Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Special Senses Harderian gland; Dilatation Modified Extraorbital lacrimal gland; after Intraorbital lacrimal gland; publication Lacrimal gland, NOS

Special Senses Harderian gland; Cyst Published Extraorbital lacrimal gland; Intraorbital lacrimal gland; Lacrimal gland, NOS

Special Senses Harderian gland; Infiltrate, inflammatory cell Published Extraorbital lacrimal gland; Intraorbital lacrimal gland; Lacrimal gland, NOS

Special Senses Harderian gland; Inflammation Published Extraorbital lacrimal gland; Intraorbital lacrimal gland; Lacrimal gland, NOS

Special Senses Harderian gland; Inflammation, Published Extraorbital lacrimal gland; granulomatous Intraorbital lacrimal gland; Lacrimal gland, NOS

Special Senses Harderian gland Porphyrin, increased Published Special Senses Extraorbital lacrimal gland; Karyomegaly Published Intraorbital lacrimal gland; Lacrimal gland, NOS Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Special Senses Harderian gland; Cytoplasmic alteration, Modified Extraorbital lacrimal gland; acinar after Intraorbital lacrimal gland; publication Lacrimal gland, NOS

Special Senses Harderian gland Hyperplasia, acinar cell Modified after publication Special Senses Extraorbital lacrimal gland; Hyperplasia, acinar cell Modified Intraorbital lacrimal gland; after Lacrimal gland, NOS publication

Special Senses Nasolacrimal duct Hyperplasia, epithelium Modified after publication Special Senses Harderian gland Adenoma Published Special Senses Harderian gland Adenocarcinoma Published Special Senses Extraorbital lacrimal gland; Adenoma Published Intraorbital lacrimal gland; Lacrimal gland, NOS

Special Senses Extraorbital lacrimal gland; Adenocarcinoma Published Intraorbital lacrimal gland; Lacrimal gland, NOS

Special Senses Nasolacrimal duct Papilloma, squamous cell Published

Special Senses Nasolacrimal duct Carcinoma, squamous cell Published

Special Senses Main olfactory epithelium Atrophy, MOE Atrophy, olfactory Published (MOE) epithelium; Atrophy, Bowman's gland Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Special Senses Main olfactory epithelium Degeneration, MOE Degeneration, olfactory Published (MOE) epithelium; Degeneration, Bowman's gland

Special Senses Main olfactory epithelium Erosion/ulcer, MOE Published (MOE) Special Senses Main olfactory epithelium Apoptosis, MOE Published (MOE) Special Senses Main olfactory epithelium Necrosis; Single cell Published (MOE) necrosis, MOE Special Senses Main olfactory epithelium Regeneration, MOE Published (MOE) Special Senses Main olfactory epithelium Infiltrate, inflammatory cell, Published (MOE) MOE Special Senses Main olfactory epithelium Inflammation, MOE Published (MOE) Special Senses Main olfactory epithelium Edema, MOE Published (MOE) Special Senses Main olfactory epithelium Hemorrhage, MOE Published (MOE) Special Senses Main olfactory epithelium Thrombus, MOE Published (MOE) Special Senses Main olfactory epithelium Eosinophilic globules, MOE Published (MOE) Special Senses Main olfactory epithelium Corpora amylacea, MOE Published (MOE) Special Senses Vomeronasal organ (VNO) Atrophy, VNO Published

Special Senses Vomeronasal organ (VNO) Degeneration, VNO Published

Special Senses Vomeronasal organ (VNO) Apoptosis, VNO Published Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Special Senses Vomeronasal organ (VNO) Necrosis; Single cell Single cell Published necrosis, VNO Special Senses Vomeronasal organ (VNO) Regeneration, VNO Published

Special Senses Vomeronasal organ (VNO) Regeneration, Modified neuroepithelium, VNO after publication Special Senses Vomeronasal organ (VNO) Infiltrate, inflammatory cell, Published VNO Special Senses Vomeronasal organ (VNO) Inflammation, VNO Published

Special Senses Vomeronasal organ (VNO) Edema, VNO Published

Special Senses Vomeronasal organ (VNO) Dilatation/diverticulum, Modified VNO after publication Special Senses Septal organ of Masera Atrophy, SOM Published (SOM) Special Senses Septal organ of Masera Degeneration, SOM Published (SOM) Special Senses Septal organ of Masera Apoptosis, SOM Published (SOM) Special Senses Grueneberg ganglion (GG) Degeneration/necrosis, Published ganglion cells (GG) Special Senses Grueneberg ganglion (GG) Degeneration, epithelium Published (GG) Special Senses Grueneberg ganglion (GG) Erosion/ulcer, epithelium Published (GG) Special Senses Grueneberg ganglion (GG) Infiltrate, inflammatory cell Modified (GG) after publication Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Special Senses Grueneberg ganglion (GG) Inflammation (GG) Published

Special Senses Olfactory bulb Degeneration/vacuolation, Published olfactory bulb Special Senses Olfactory bulb Apoptosis, olfactory bulb Published Special Senses Olfactory bulb Infiltrate, inflammatory cell, Published olfactory bulb Special Senses Olfactory bulb Inflammation, olfactory bulb Published

Special Senses Main olfactory epithelium Hyperplasia, MOE Published (MOE) Special Senses Main olfactory epithelium Metaplasia, respiratory, Published (MOE) MOE Special Senses Main olfactory epithelium Metaplasia, squamous cell, Published (MOE) MOE Special Senses Vomeronasal organ (VNO) Hyperplasia, VNO Published

Special Senses Septal organ of Masera Metaplasia, squamous cell, Published (SOM) SOM Special Senses Main olfactory epithelium Carcinoma, neuroepithelial, Published (MOE) MOE Special Senses Vomeronasal organ (VNO) Carcinoma, neuroepithelial, Published VNO Special Senses Ear, external Perforation, tympanic Published membrane Special Senses Ear, external Inflammation, auricular Published cartilage Special Senses Ear, external Inflammation, external ear Published canal Special Senses Ear, external Debris, external ear canal Published Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Special Senses Ear, external Cyst, tympanic membrane Published

Special Senses Ear, middle Mineralization Published Special Senses Ear, middle Ulcer Published Special Senses Ear, middle Necrosis, bone Published Special Senses Ear, middle Necrosis, tympanic Published membrane Special Senses Ear, middle Infiltrate, inflammatory cell Published

Special Senses Ear, middle Inflammation, middle ear Published

Special Senses Ear, middle Inflammation, middle ear, Published catarrhal Special Senses Ear, middle Metaplasia, squamous cell Published

Special Senses Ear, middle Metaplasia, tall cuboidal to Published columnar Special Senses Ear, middle Fibrosis Published Special Senses Ear, middle Granulation tissue Published Special Senses Ear, middle Inflammation, Published granulomatous Special Senses Ear, middle Hemorrhage Published Special Senses Ear, middle Edema Published Special Senses Ear, middle Cyst Published Special Senses Ear, middle Cholesteatoma Published Special Senses Ear, middle Atrophy, bone Published Special Senses Ear, middle New bone formation Published Special Senses Ear, inner Degeneration, hair cells Decreased number, hair cell Published and/or epithelium Special Senses Ear, inner Hair cell, decreased number Modified after publication Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Special Senses Ear, inner Necrosis, hair cell Published Special Senses Ear, inner Necrosis, cartilage Published Special Senses Ear, inner Necrosis, vestibular organ Published

Special Senses Ear, inner Necrosis, neuron Modified after publication Special Senses Ear, inner Degeneration, axon Modified after publication Special Senses Ear, inner Cellularity, decreased, spiral Modified limbus, spiral ligament, after and/or stria vascularis publication

Special Senses Ear, inner Cellularity, decreased, spiral Modified ganglion after publication Special Senses Ear, inner Vacuolation, hair Published cell/supporting cell Special Senses Ear, inner Vacuolation, stria vascularis Published

Special Senses Ear, inner Inflammation, inner ear Published Special Senses Ear, inner Fibrosis Published Special Senses Ear, inner Otolith loss, disorganization, Published or disruption

Special Senses Ear, inner Edema Published Special Senses Ear, inner Hemorrhage Published Special Senses Ear, inner New bone formation Published Hematolymphoid System General hematolymphoid Amyloid Published Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Hematolymphoid System General hematolymphoid Aplasia/hypoplasia Agenesis Published

Hematolymphoid System General hematolymphoid Apoptosis, increased, Published lymphocyte Hematolymphoid System General hematolymphoid Increased cellularity, mast Published cell Hematolymphoid System General hematolymphoid Extramedullary Erythroid; Myeloid Published hematopoiesis (EMH) Hematolymphoid System General hematolymphoid Infiltrate (indicate modifier) Neutrophil; Eosinophil; Mast Published cell; Monocyte; Macrophage; Mixed cell Hematolymphoid System General hematolymphoid Inflammation (indicate Neutrophil, mononuclear Published modifier) cell, lymphocyte, monocyte, mixed cell, lymphoplasmacytic, pyogranulomatous, granulomatous, acute, subacute, chronic, and chronic active

Hematolymphoid System General hematolymphoid Inflammation, neutrophil Published

Hematolymphoid System General hematolymphoid Abscess Published

Hematolymphoid System General hematolymphoid Inflammation, mononuclear Published cell, lymphocyte, monocyte, eosinophil, mixed cell, lymphoplasmacytic, or pyogranulomatous

Hematolymphoid System General hematolymphoid Inflammation, Published granulomatous Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Hematolymphoid System General hematolymphoid Granuloma Published

Hematolymphoid System General hematolymphoid Metaplasia, osseous Published

Hematolymphoid System General hematolymphoid Mineralization Published

Hematolymphoid System General hematolymphoid Necrosis Lymphoid, lymphocyte Published

Hematolymphoid System General hematolymphoid Pigment, macrophage Published

Hematolymphoid System General hematolymphoid Tingible body macrophage, Published increased Hematolymphoid System General hematolymphoid Vacuolation, macrophage Published

Hematolymphoid System Bone marrow Angiectasis Published Hematolymphoid System Bone marrow Cellularity, decreased, Published adipocyte Hematolymphoid System Bone marrow Cellularity, decreased, bone Erythroid; Myeloid Published marrow (granulocytic, monocytic); Megakaryocytic; NOS

Hematolymphoid System Bone marrow Dyshematopoiesis Erythroid; Myeloid Published (granulocytic, monocytic); Megakaryocytic; NOS

Hematolymphoid System Bone marrow Fibrosis Published Hematolymphoid System Bone marrow Hypersegmentation, Published granulocyte Hematolymphoid System Bone marrow Serous atrophy of fat Published Hematolymphoid System Bone marrow Cellularity, increased, Published adipocyte Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Hematolymphoid System Bone marrow Cellularity, increased, bone Erythroid; Myeloid Published marrow (granulocytic, monocytic); Megakaryocytic; Lymphocytic; Plasma cell; NOS

Hematolymphoid System Bone marrow Cellularity, increased, Tingible body; Pigmented; Published macrophage Vacuolated; Aggregates

Hematolymphoid System Bone marrow Cellularity, increased, mast Published cell Hematolymphoid System Thymus Apoptosis, increased, Published lymphocyte Hematolymphoid System Thymus Cellularity, decreased, Published lymphocyte Hematolymphoid System Thymus Corticomedullary ratio, Published decreased Hematolymphoid System Thymus Corticomedullary ratio, Published increased Hematolymphoid System Thymus Cyst, epithelial Published Hematolymphoid System Thymus Ectopic tissue, parathyroid Published

Hematolymphoid System Thymus Ectopic tissue, (specify Published tissue) Hematolymphoid System Thymus Ectopic tissue, thymus Published Hematolymphoid System Thymus Hypoplasia Published Hematolymphoid System Thymus Involution, age-related Published Hematolymphoid System Thymus Loss of corticomedullary Published distinction Hematolymphoid System Thymus Necrosis, lymphocyte Published Hematolymphoid System Thymus Cellularity, increased, Published epithelial cell Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Hematolymphoid System Thymus Cellularity, increased, T cell; B cell Published lymphocyte Hematolymphoid System Thymus Epithelium-free areas, Published increased Hematolymphoid System Thymus Thymic corpuscles, Published increased Hematolymphoid System Spleen Apoptosis, increased, Published lymphocyte Hematolymphoid System Spleen Cellularity, decreased, white Lymphoid, lymphocyte Published pulp Hematolymphoid System Spleen Angiectasis Published Hematolymphoid System Spleen Cellularity, decreased, red Published pulp Hematolymphoid System Spleen Congestion Published Hematolymphoid System Spleen Contraction Published Hematolymphoid System Spleen Ectopic tissue, spleen Published Hematolymphoid System Spleen Erythrophagocytosis Published Hematolymphoid System Spleen Fibrosis Published Hematolymphoid System Spleen Aggregates, macrophage, Vacuolated; Pigmented Published increased Hematolymphoid System Spleen Cellularity, increased, Published plasma cell, white pulp Hematolymphoid System Spleen Cellularity, increased, white Lymphoid; Lymphocyte Published pulp Hematolymphoid System Spleen Cellularity, increased, Published adipocyte Hematolymphoid System Spleen Cellularity, increased, Tingible body; Pigmented; Published macrophage Vacuolated; Aggregates

Hematolymphoid System Spleen Cellularity, increased, mast Published cell Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Hematolymphoid System Spleen Cellularity, increased, Published mesothelial cell Hematolymphoid System Spleen Cellularity, increased, Published plasma cell, red pulp Hematolymphoid System Spleen Cellularity, increased, Published stromal cell Hematolymphoid System Spleen Extramedullary Published hematopoiesis, increased

Hematolymphoid System Spleen Hyperplasia, nodular Published Hematolymphoid System Lymph node Apoptosis, increased, Published lymphocyte Hematolymphoid System Lymph node Cellularity, decreased, Lymphoid; Lymphocyte Published lymphocyte Hematolymphoid System Lymph node Dilatation, sinus Published Hematolymphoid System Lymph node Erythrocytes, intrasinusoidal Published

Hematolymphoid System Lymph node Lymphangiectasis Published Hematolymphoid System Lymph node Aggregates, increased, Pigmented; Vacuolated Published macrophage Hematolymphoid System Lymph node Cellularity, increased, Published interdigitating dendritic cell

Hematolymphoid System Lymph node Cellularity, increased, Lymphoid; Lymphocyte Published lymphocyte Hematolymphoid System Lymph node Cellularity, increased, Published plasma cell Hematolymphoid System Lymph node Cellularity, increased, Published stromal cell Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Hematolymphoid System Lymph node Hyperplasia, angiomatous Lymphatic (if vessels contain Published only proteinaceous fluid and no erythrocytes)

Hematolymphoid System Lymph node Hypertrophy/hyperplasia, Published high endothelial venule (HEV) Hematolymphoid System Lymph node Cellularity, increased, Pigmented; Vacuolated Published macrophage, intrasinusoidal

Hematolymphoid System Lymph node Cellularity, increased, mast Published cell Hematolymphoid System Lymph node Fibrosis Published Hematolymphoid System MALT (mucosa-associated Cellularity, decreased, Lymphoid; Lymphocyte Published lymphoid tissue) lymphocyte

Hematolymphoid System MALT (mucosa-associated Degeneration, follicle- Published lymphoid tissue) associated epithelium

Hematolymphoid System MALT (mucosa-associated Hyaline material Published lymphoid tissue)

Hematolymphoid System MALT (mucosa-associated Lymphangiectasis Published lymphoid tissue)

Hematolymphoid System MALT (mucosa-associated Aggregates, macrophage Published lymphoid tissue)

Hematolymphoid System MALT (mucosa-associated Cellularity, increased, Published lymphoid tissue) lymphocyte Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Hematolymphoid System MALT (mucosa-associated Cellularity, increased, Tingible body; Pigmented; Published lymphoid tissue) macrophage Vacuolated; Aggregates

Hematolymphoid System MALT (mucosa-associated Hyperplasia, follicle- Published lymphoid tissue) associated epithelium

Hematolymphoid System MALT (mucosa-associated Hyperplasia, goblet cell, Published lymphoid tissue) follicle-associated epithelium Hematolymphoid System MALT (mucosa-associated Hypertrophy/hyperplasia, Published lymphoid tissue) high endothelial venule (HEV) Hematolymphoid System MALT (mucosa-associated Metaplasia, squamous, Published lymphoid tissue) follicle-associated epithelium Hematolymphoid System Other lymphoid tissues Tertiary lymphoid structures Published (TLSs) Hematolymphoid System Other lymphoid tissues Increased SALCs Published Hematolymphoid System Hematolymphoid neoplasms Leukemia, erythroid Published

Hematolymphoid System Hematolymphoid neoplasms Leukemia, megakaryocytic Published

Hematolymphoid System Hematolymphoid neoplasms Leukemia, myeloid Neutrophilic; Eosinophilic; Published Basophilic; Myelomonocytic; Monocytic; NOS (not otherwise specified)

Hematolymphoid System Hematolymphoid neoplasms Leukemia, NOS Leukemia Published Organ Working Group Organs Lesion Modifier(s) Synonym/other term Status Hematolymphoid System Hematolymphoid neoplasms Lymphoma Subtype modifiers: Published Lymphoblastic; Pleomorphic; Follicular; Immunoblastic; Lymphocytic; Plasmacytic; Epitheliotrophic cutaneous T- cell; Marginal zone; LGL, NOS. Cell type modifiers: T cell; B cell. Qualifier (optional): Leukemic (can be used when there is an obvious leukemia present judging from the peripheral blood smears or tissue sections)

Hematolymphoid System Hematolymphoid neoplasms Histiocytic sarcoma Published

Hematolymphoid System Hematolymphoid neoplasms Leukemia, mast cell Published

Hematolymphoid System Hematolymphoid neoplasms Tumor, mast cell, benign Published

Hematolymphoid System Hematolymphoid neoplasms Tumor, mast cell, malignant Published

Hematolymphoid System Thymus Thymoma, benign Epithelial; Spindeloid Published Hematolymphoid System Thymus Thymoma, malignant Epithelial; Spindeloid Published