DOCSLIB.ORG

Radiographic Features of Cysts and Benign Tumors of the Jaws

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Radiographic Features of Cysts and Benign Tumors of the Jaws Radiographic features of cysts Cyst and benign tumors of the jaws A Cyst is a benign pathologic cavity filled with fluid, lined by epithelium, and surrounded by a connective tissue wall Steven R. Singer, DDS A = connective tissue wall [email protected] 212.305.5674 B = epithelium Effects on adjacent structures Types ! Odontogenic ! Non-Odontogenic ! Pseudocysts Adapted from: White and Pharoah: Oral Radiology-principles and interpretation, page 380 Odontogenic Cysts Non-Odontogenic cysts ! Radicular cyst ! Nasopalatine cyst ! Residual cyst ! Nasolabial cyst ! Dentigerous cyst ! Dermoid cyst ! Paradental cysts (Buccal bifurcation cysts) ! Cysts formerly known as ! Odontogenic Keratocyst (OKC) “developmental cysts” ! Basal cell nevus-bifid rib-OKC syndrome ! Lateral periodontal cyst ! Calcifying odontogenic cyst 1 Pseudocysts Odontogenic Cysts ! Simple bone cyst (Traumatic bone cyst) ! Radicular cyst ! Aneurysmal Bone Cyst ! Residual cyst ! Dentigerous cyst ! Mucous Retention Cyst ! Paradental cysts (Buccal bifurcation cysts) ! Stafne Bone Cyst (aka Stafne Bone ! Odontogenic keratocyst (OKC) Defect) ! Basal cell nevus-bifid rib-OKC syndrome ! Lateral periodontal cyst ! Calcifying odontogenic cyst Radicular cyts Radicular cyts ! Results from the stimulation of the epithelial cell rests in the PDL by the inflammatory products from the non-vital tooth ! Most common type of cysts in the jaws Radicular cyts Odontogenic Cysts ! Radicular cyst ! Residual cyst ! Dentigerous cyst ! Paradental cysts (Buccal bifurcation cysts) ! Odontogenic Keratocyst (OKC) ! Basal cell nevus-bifid rib-OKC syndrome ! Lateral periodontal cyst ! Calcifying odontogenic cyst 2 Residual Cyst Residual Cyst Residual Cyst Residual Cyst Residual cyst with Squamous Residual cyst with squamous Cell Carcinoma cell carcinoma 3 Odontogenic Cysts Dentigerous cyst (follicular cyst) ! Radicular cyst ! Develops around the crown of an unerupted permanent or supernumerary tooth ! Residual cyst ! Second most common type of cyst in the jaws ! Dentigerous cyst ! Asymptomatic ! Paradental cysts (Buccal bifurcation cysts) ! Internal aspect is completely lucent except for the ! Odontogenic keratocyst (OKC) crown of the involved tooth ! Basal cell nevus-bifid rib-OKC syndrome ! Either resorbs or displaces the adjacent teeth ! Follicular spaces >5mm (normal 2-3 mm) should be ! Lateral periodontal cyst closely followed for potential development of ! Calcifying odontogenic cyst dentigerous cysts. Dentigerous cyst Dentigerous cyst Root Resorption Dentigerous cyst Dentigerous cyst Root Resorption 4 Dentigerous cyst Dentigerous cyst Dentigerous cyst 2 Dentigerous cyst 2 AB Odontogenic Cysts ! Radicular cyst ! Residual cyst ! Dentigerous cyst C ! Paradental cysts (Buccal bifurcation cysts) ! Odontogenic keratocyst (OKC) ! Basal cell nevus-bifid rib-OKC syndrome ! Lateral periodontal cyst ! Calcifying odontogenic cyst 5 Odontogenic Cysts Odontogenic Cysts ! Paradental cysts (Buccal bifurcation cysts) ! Radiographic Features of the Buccal bifurcation cyst ! Most common in the 6- to 11-year-old age group. ! Fine radiopaque concave line as lower limit, producing a U- ! Usually associated with the mandibular first molar, shaped radiolucent lesion that appears superimposed over occasionally the mandibular second molar. the roots. ! The associated tooth has an altered eruption pattern with ! Intact periodontal ligament space and lamina dura. buccal tilting of the crown. ! Increased prominence of lingual cusps due to tilting. ! The associated tooth is vital. ! Apices tilted toward lingual cortex. ! Deep periodontal pockets on the buccal aspect of the tooth. ! Intact inferior border of mandible. ! +/- swelling ! +/- periosteal reaction on buccal surface. ! +/- pain or tenderness ! +/- bony expansion, thinning and associated swelling of the ! +/- infection. buccal cortex. ! +/- displacement of adjacent unerupted teeth David LA, Sandor GKB, Stoneman DW, The buccal David LA, Sandor GKB, Stoneman DW, The buccal bifurcation cyst: Is non-surgical treatment an bifurcation cyst: Is non-surgical treatment an option? JCDA 64(9) 712-717 1998. option? JCDA 64(9) 712-717 1998. Buccal Bifurcation Cyst Odontogenic Cysts ! Radicular cyst ! Residual cyst ! Dentigerous cyst ! Paradental cysts (Buccal bifurcation cysts) These ! Odontogenic keratocyst (OKC) lesions tend ! Basal cell nevus-bifid rib-OKC syndrome to resolve ! Lateral periodontal cyst without intervention ! Calcifying odontogenic cyst David LA, Sandor GKB, Stoneman DW, The buccal bifurcation cyst: Is non-surgical treatment an option? JCDA 64(9) 712-717 1998. Odontogenic Keratocyst (OKC) An OKC is a non-inflammatory odontogenic cyst that arises from the dental lamina. The epithelium in OKC appears to have innate growth potential similar to some benign tumors. 6 Odontogenic Keratocyst (OKC) OKC ! First reported by Philipsen in 1956 nd rd ! Peak occurence in the 2 and 3 decades ! Asymptomatic, swelling on occasion ! Pain from secondary infection ! Aspiration may reveal thick yellow cheesy material (keratin) ! High recurrence rate after surgical enucleation OKC I OKC I OKC I OKC II 7 OKC II Basal cell nevus-bifid rib syndrome ! Age range 5-30 years ! Abnormalities including multiple nevoid basal cell carcinomas of the skin, skeletal abnormalities (bifid ribs, agenesis and/or synostosis of ribs, kyphoscoliosis, vertebral fusion, temporopatietal bossing, etc.), CNS abnormalities (calcification of falx cerebri), eye abnormalities, multiple OKCs Multiple OKC’s Multiple OKC’s Odontogenic Cysts Lateral periodontal cyst ! Usually unicystic, it may also ! Radicular cyst appear as a cluster of small ! Residual cyst cysts "botryoid odontogenic cysts ! Dentigerous cyst ! Arise from the epithelial rests in the periodontium ! Paradental cysts (Buccal bifurcation cysts) lateral to the root ! 50-75% develop in the ! Odontogenic Keratocyst (OKC) mandible from lateral incisor ! Basal cell nevus-bifid rib-OKC syndrome to the premolar region ! In the maxilla, they appear ! Lateral periodontal cyst between lateral incisor and canine ! Calcifying odontogenic cyst 8 Lateral Periodontal Cyst Lateral Periodontal Cyst Lateral periodontal cyst Odontogenic Cysts ! Botryoid lateral ! Radicular cyst periodontal cyst ! Residual cyst ! Origin from dental ! Dentigerous cyst lamina? ! Paradental cysts (Buccal bifurcation cysts) ! Odontogenic keratocyst (OKC) ! Basal cell nevus-bifid rib-OKC syndrome [From Greek botruoeid s : botrus, bunch of grapes + - ! Lateral periodontal cyst oeid s, -oid.] ! Calcifying odontogenic cyst Calcifying odontogenic cyst Calcifying odontogenic cyst ! Calcifying odontogenic cysts have a wide age distribution that peaks at 10 to 19 years of age, with a mean age of 36 years ! Clinically, the lesion usually appears as a slow- growing, painless swelling of the jaw. Occasionally the patient complains of pain. In some cases the expanding lesion may destroy the cortical plate, and the cystic mass may become palpable as it extends into the soft tissue. ! Aspiration often yields a viscous, granular, yellow fluid. 9 Calcifying odontogenic cyst Calcifying odontogenic cyst Case courtesy of the KAOMFR Case courtesy of the KAOMFR Calcifying odontogenic cyst Calcifying odontogenic cyst Case courtesy of the KAOMFR Case courtesy of the KAOMFR Calcifying odontogenic cyst Non-Odontogenic cysts ! Nasopalatine cyst ! Nasolabial cyst ! Dermoid cyst ! Former “developmental cysts” Case courtesy of the KAOMFR 10 Nasopalatine Duct Cyst Nasopalatine duct cyst Courtesy of Department of Oral Surgery, Hornouchi Hospital, Saitama, Japan Nasopalatine duct cyst Non-Odontogenic cysts ! aka incisive canal cyst ! Nasopalatine cyst ! If it involves the posterior hard palate, ! Nasolabial cyst termed median palatal ! Dermoid cyst cyst ! ! Anteriorly, may be Former “developmental cysts” called median anterior maxillary cyst, depending on the radiographic features Nasolabial cysts Thyroglossal duct cyst Source of the epithelium may be embryonic nasolacrimal duct, which initially lies on the bone surface. Courtesy of Dr. Sharon Brooks 11 Pathoses formerly known as “Globulomaxillary” Cysts “Globulomaxillary” Cyst ! Discredited as a developmental cyst ! Most are found, upon re-examination of histopathological and radiographic evidence, to be radicular or lateral periodontal cysts. Image courtesy of Asahi University School of Dentistry Pseudocysts Pseudocysts ! Simple bone cyst (Traumatic bone cyst) ! Simple bone cyst (Traumatic bone cyst) ! Aneurysmal Bone Cyst ! Aneurysmal Bone Cyst ! Mucous Retention Cyst ! Mucous Retention Cyst ! Stafne Bone Cyst (aka Stafne Bone ! Stafne Bone Cyst (aka Stafne Bone Defect) Defect) Pseudocysts Simple Bone cyst ! Simple bone cyst (Traumatic bone cyst) 12 Simple bone cyst associated with Simple Bone cyst florid cemento-osseous dysplasia Pseudocysts Aneurysmal Bone Cyst (ABC) ! The aneurysmal bone cyst ! Simple bone cyst (Traumatic bone cyst) (ABC) is an expansible osteolytic pseudocystic lesion ! Aneurysmal Bone Cyst that most often affects persons during their second decade of life. Albeit ! Mucous Retention Cyst virtually any bone of the skeleton may be affected; ! Stafne Bone Cyst (aka Stafne Bone ABCs are most frequent in the long tubular bones and Defect) spine. There are several reports of the occurrence of this pathological entity in the jaws and other craniofacial bones, http://www.thejcdp.com/issue022/martins/03ma rtins.htm Pseudocysts Mucous retention cyst ! Simple bone cyst (Traumatic bone cyst) ! Dome shaped opacity in the floor ! Aneurysmal bone cyst
Load more

Recommended publications
  • Bartholin's Cyst, Also Called a Bartholin's Duct Cyst, Is a Small Growth Just Inside the Opening of a Woman’S Vagina
    Saint Mary’s Hospital Bartholin’s cyst Information For Patients 2 Welcome to the Gynaecology Services at Saint Mary’s Hospital This leaflet aims to give you some general information about Bartholin’s cysts and help to answer any questions you may have. It is intended only as a guide and there will be an opportunity for you to talk to your nurse and doctor about your care and treatment. What is a Bartholin;s cyst? A Bartholin's cyst, also called a Bartholin's duct cyst, is a small growth just inside the opening of a woman’s vagina. Cysts are small fluid-filled sacs that are usually harmless. Normal anatomy Bartholin gland cyst Bartholin’s glands The Bartholin’s glands are a pair of pea-sized glands that are found just behind and either side of the labia minora (the inner pair of lips surrounding the entrance to the vagina). The glands are not usually noticeable because they are rarely larger than 1cm (0.4 inches) across. 3 The Bartholin’s glands secrete fluid that acts as a lubricant during sexual intercourse. The fluid travels down tiny ducts (tubes) that are about 2cm (0.8 inches) long into the vagina. If the ducts become blocked, they will fill with fluid and expand. This then becomes a cyst. How common is a Bartholin’s cyst? According to estimates, around 2% (1 in 50) of women will experience a Bartholin’s cyst at some point. The condition usually affects sexually active women between the ages of 20 and 30. The Bartholin’s glands do not start functioning until puberty, so Bartholin’s cysts do not usually affect children.
    [Show full text]
  • The Nutrition and Food Web Archive Medical Terminology Book
    The Nutrition and Food Web Archive Medical Terminology Book www.nafwa.
    [Show full text]
  • Practical Applications of Molecular Testing in the Cytologic Diagnosis of Pancreatic Cysts
    Review Practical Applications of Molecular Testing in the Cytologic Diagnosis of Pancreatic Cysts Mingjuan Lisa Zhang * and Martha B. Pitman * Department of Pathology, Massachusetts General Hospital, Boston, MA 02114, USA * Correspondence: [email protected] (M.L.Z.); [email protected] (M.B.P.) Abstract: Mucinous pancreatic cysts are precursor lesions of ductal adenocarcinoma. Discoveries of the molecular alterations detectable in pancreatic cyst fluid (PCF) that help to define a mucinous cyst and its risk for malignancy have led to more routine molecular testing in the preoperative evaluation of these cysts. The differential diagnosis of pancreatic cysts is broad and ranges from non-neoplastic to premalignant to malignant cysts. Not all pancreatic cysts—including mucinous cysts—require surgical intervention, and it is the preoperative evaluation with imaging and PCF analysis that determines patient management. PCF analysis includes biochemical and molecular analysis, both of which are ancillary studies that add significant value to the final cytological diagnosis. While testing PCF for carcinoembryonic antigen (CEA) is a very specific test for a mucinous etiology, many mucinous cysts do not have an elevated CEA. In these cases, detection of a KRAS and/or GNAS mutation is highly specific for a mucinous etiology, with GNAS mutations supporting an intraductal papillary mucinous neoplasm. Late mutations in the progression to malignancy such as those found in TP53, p16/CDKN2A, and/or SMAD4 support a high-risk lesion. This review highlights PCF triage and analysis of pancreatic cysts for optimal cytological diagnosis. Keywords: pancreatic cytology; pancreatic cyst fluid; cyst fluid triage; molecular testing; mucinous cyst; intraductal papillary mucinous neoplasm; mucinous cystic neoplasm Citation: Zhang, M.L.; Pitman, M.B.
    [Show full text]
  • Cryotherapy in the Treatment of Glandular
    Cryotherapy in the treatment of glandular odontogenic cyst: case report and review Crioterapia no tratamento de cisto odontogênico glandular: relato de caso e revisão Milene Borges Campagnaro* Raquel Medeiros Farias* Roger Correa de Barros Berthold** Márcia Rejane Brücker*** Fábio Dal Moro Maito**** Claiton Heitz***** Objective: The Glandular Odontogenic Cyst (GOC) is Introduction a rare benign odontogenic lesion, of considerable ag- gression, and often incorrectly diagnosed. We present a Glandular Odontogenic Cyst (GOC) was first patient with a Glandular Odontogenic Cyst in the pos- described by Gardner in 1988 as a distinct clinical terior mandible, its evolution, treatment, and follow-up. pathologic entity, and it was included in the WHO Case report: A female patient, 45 years old, was referred histological typing of odontogenic tumors under to the Oral and Maxillofacial Surgery and Traumatology GOC or sialo-odontogenic cyst1-5. Division at Cristo Redentor Hospital, Porto Alegre, Bra- Glandular Odontogenic Cyst is a rare lesion, of zil, for the assessment of a painful edema on the right considerable aggressive behavior, originated at the hemiface. A unilocular area with well-defined borders 1-5 in the retromolar region, posterior to the third molar on areas of dental support . Clinically, the most affec- the right side of the mandible. The histopathological ted site is the anterior part of the mandible and it examination suggested GOC. Final considerations: The mostly occurs in middle-aged patients with a slight Glandular Odontogenic Cyst needs a complete clinical male prevalence2,4-8. Epidemiological features are assessment associated with image analyses, and espe- scarce due to the rarity of the lesion and a review in cially, with histopathology for the correct diagnosis of 2008 pointed 111 cases published in the literature6.
    [Show full text]
  • Glandular Odontogenic Cyst: Case Series and Summary of the Literature
    502 > CLINICAL REVIEW http://dx.doi.org/10.17159/2519-0105/2019/v74no9a6 Glandular odontogenic cyst: case series and summary of the literature SADJ October 2019, Vol. 74 No. 9 p502 - p507 F Opondo1, S Shaik2, J Opperman3, CJ Nortjé4 ABSTRACT The glandular odontogenic cyst (GOC) remains a Histologically, it may mimic any one of a dentigerous rare entity. It was initially named “sialo-odontogenic cyst, radicular cyst, surgical ciliated cyst, lateral perio- cyst” by Padayachee and Van Wyk in 1987 when dontal cyst or a botryoid odontogenic cyst. Importantly, they reported the first two cases. Thereafter the the features of a cystic lesion with squamous and term glandular odontogenic cyst was suggested mucous epithelial elements may cause it to be mis- by Gardner et al. in 1988 and was subsequently diagnosed as a central mucoepidermoid carcinoma. adopted by the WHO.1 With more comprehensive diagnostic criteria, at least 180 In addition to its rarity, it has non-pathognomonic cases have so far been reported in the English literature.4 clinical and radiological features and hence can It is therefore reasonable to assume that the previous mimic other lesions. Since its recognition as an rarity of this entity may be attributable to misdiagnosis. entity by the WHO in 1992, only two further cases of glandular odontogenic cyst have been seen at CASE 1 the authors’ institution and are hereby reported together with a summary of the review articles in A 60-year-old man presented at the diagnostic clinic at the English literature. Tygerberg Oral Health Centre with an asymptomatic swelling of the anterior mandible.
    [Show full text]
  • Non-Cancerous Breast Conditions Fibrosis and Simple Cysts in The
    cancer.org | 1.800.227.2345 Non-cancerous Breast Conditions ● Fibrosis and Simple Cysts ● Ductal or Lobular Hyperplasia ● Lobular Carcinoma in Situ (LCIS) ● Adenosis ● Fibroadenomas ● Phyllodes Tumors ● Intraductal Papillomas ● Granular Cell Tumors ● Fat Necrosis and Oil Cysts ● Mastitis ● Duct Ectasia ● Other Non-cancerous Breast Conditions Fibrosis and Simple Cysts in the Breast Many breast lumps turn out to be caused by fibrosis and/or cysts, which are non- cancerous (benign) changes in breast tissue that many women get at some time in their lives. These changes are sometimes called fibrocystic changes, and used to be called fibrocystic disease. 1 ____________________________________________________________________________________American Cancer Society cancer.org | 1.800.227.2345 Fibrosis and cysts are most common in women of child-bearing age, but they can affect women of any age. They may be found in different parts of the breast and in both breasts at the same time. Fibrosis Fibrosis refers to a large amount of fibrous tissue, the same tissue that ligaments and scar tissue are made of. Areas of fibrosis feel rubbery, firm, or hard to the touch. Cysts Cysts are fluid-filled, round or oval sacs within the breasts. They are often felt as a round, movable lump, which might also be tender to the touch. They are most often found in women in their 40s, but they can occur in women of any age. Monthly hormone changes often cause cysts to get bigger and become painful and sometimes more noticeable just before the menstrual period. Cysts begin when fluid starts to build up inside the breast glands. Microcysts (tiny, microscopic cysts) are too small to feel and are found only when tissue is looked at under a microscope.
    [Show full text]
  • Ovarian Cysts Before the Menopause
    Information for you Published in June 2013 Ovarian cysts before the menopause About this information This information is for you if you are premenopausal (have not gone through the menopause) and your doctor thinks you might have a cyst on one or both of your ovaries. It tells you about cysts on the ovary and the tests and treatment you may be offered. This information aims to help you and your healthcare team make the best decisions about your care. It is not meant to replace advice from a doctor about your situation. What are ovaries? Ovaries are a woman’s reproductive organs that make female hormones and release an egg from a follicle (a small fluid-filled sac) each month. The follicle is usually about 2–3 cm when measured across (diameter) but sometimes can be larger. What is an ovarian cyst? An ovarian cyst is a larger fluid-filled sac (more than 3 cm in diameter) that develops on or in an ovary. A cyst can vary in size from a few centimetres to the size of a large melon. Ovarian cysts may be thin-walled and only contain fluid (known as a simple cyst) or they may be more complex, containing thick fluid, blood or solid areas. There are many different types of ovarian cyst that occur before the menopause, examples of which include: • a simple cyst, which is usually a large follicle that has continued to grow after an egg has been released; simple cysts are the most common cysts to occur before the menopause and most disappear within a few months • an endometrioma – endometriosis, where cells of the lining of the womb are found outside the womb, sometimes causes ovarian cysts and these are called endometriomas (for further information see the RCOG patient information leaflet Endometriosis: What You Need to 1 Know, available at: www.rcog.org.uk/womens-health/clinical-guidance/endometriosis-what-you- need-know) • a dermoid cyst, which develops from the cells that make eggs in the ovary, often contains substances such as hair and fat.
    [Show full text]
  • Orthokeratinized Odontogenic Cyst a Clinicopathologic Study of 61 Cases
    Orthokeratinized Odontogenic Cyst A Clinicopathologic Study of 61 Cases Qing Dong, MDS; Shuang Pan, MDS; Li-Sha Sun, PhD; Tie-Jun Li, DDS, PhD ● Context.—Orthokeratinized odontogenic cyst (OOC) is mainly in the third and fourth decades (57.38%) with a a relatively uncommon developmental cyst comprising distinct predilection for males (72.13%). Six (9.84%) le- about 10% of cases that had been previously coded as sions were found in the maxilla and 55 (90.16%) in the odontogenic keratocysts. Odontogenic keratocyst was des- mandible. The most common sites were in the mandibular ignated as keratocystic odontogenic tumor (KCOT) in the molar and ramus region. Of the 54 cases with radiographic new World Health Organization classification and OOC record, 47 (87.04%) were unilocular and 7 (12.96%) were should be distinguished from KCOT for differences in his- multilocular radiolucencies. Twenty-seven of the 54 cysts tologic features and biologic behavior. were associated with an impacted tooth. Follow-up of 42 Objective.—To analyze the clinicopathologic features of patients revealed no recurrence during an average period 61 cases of OOC in a Chinese population. of 76.8 months after surgery. Compared with KCOTs, ex- Design.—Clinicopathologic analysis was performed on pression level of Ki-67 and p63 was significantly lower in 61 cases of OOC. Immunohistochemical expression of Ki- OOCs, suggesting a lower proliferative activity. 67 and p63 was evaluated in 15 OOCs and 15 typical Conclusion.—Orthokeratinized odontogenic cyst is clin- KCOTs. icopathologically distinct from KCOT and should consti- Results.—The 61 patients with OOC ranged from 13 to tute its own clinical entity.
    [Show full text]
  • Treatment Options for Keratocyst Odontogenic Tumour (KCOT): a Systematic Review G
    Oral Surgery ISSN 1752-2471 ORIGINAL ARTICLE Treatment options for keratocyst odontogenic tumour (KCOT): a systematic review G. Dias1, T. Marques2 & P. Coelho1 1Oral Surgery Department, School of Dentistry, University of Lisbon, Lisbon, Portugal 2Improvement in Teaching Methods in Conservative Dentistry, School of Dentistry, University of Lisbon, Lisbon, Portugal Key words: Abstract keratocystic odontogenic tumour, odontogenic keratocyst, odontogenic Background: The keratocystic odontogenic tumour (KCOT) is a benign tumours, recurrence, treatment intraosseous odontogenic lesion relatively frequent in the oral cavity. It has a locally aggressive behaviour and exhibits a high propensity to Correspondence to: recur after treatment. All the singular characteristics of this pathology G Dias have originated controversy in the scientific community regarding the Oral Surgery Department most appropriate surgical approaches for the successful treatment of this School of Dentistry University of Lisbon tumour. Rua Duque de Palmela Objectives: To analyse the optimal treatment choice for this tumour, No. 6, loja 11 ensuring high success rates of treatment, preventing future recurrences 1250-098 Lisbon and allowing the maintenance of the patient’s quality of life. Portugal Materials and methods: A search was conducted in Cochrane – 1 result – Tel.: +351213158086 and in PubMed – 756 results. The selection of articles was based on email: goncalosegurodias@gsd-dentalclinics. abstracts and inclusion and exclusion criteria. Three research studies com were
    [Show full text]
  • Abstracts of the XXI Brazilian Congress of Oral Medicine and Oral Pathology
    Vol. 117 No. 2 February 2014 Abstracts of the XXI Brazilian Congress of Oral Medicine and Oral Pathology ORAL PRESENTATIONS GERMANO, MÁRCIA CRISTINA DA COSTA MIGUEL, ÉRICKA JANINE DANTAS DA SILVEIRA. UNIVERSIDADE AO-01 - MAXILLARY OSTEOSARCOMA INITIALLY FEDERAL DO RIO GRANDE DO NORTE. RESEMBLING PERIAPEX DENTAL INJURY: CLINICAL Renal osteodystrophy represents the musculoskeletal mani- CASE REPORT. JOANA DOURADO MARTINS, JARIELLE festations resulting from metabolic abnormalities in patients with OLIVEIRA MASCARENHAS ANDRADE, JULIANA ARAUJO chronic renal failure (CRF). Woman, 23, reported a hard, asymp- LIMA DA SILVA, ALESSANDRA LAIS PINHO VALENTE, tomatic, expansive mass present for 4 years on the right side of the MÁRCIO CAMPOS OLIVEIRA, MICHELLE MIRANDA face that was causing airway compromise and facial disfigurement. LOPES FALCÃO, VALÉRIA SOUZA FREITAS. UNI- Her history included idiopathic CRF, and she had been receiving VERSIDADE ESTADUAL DE FEIRA DE SANTANA. hemodialysis for 10 years. During this period she developed sec- Maxillary osteosarcoma is a rare and aggressive bone tumor ondary hyperparathyroidism that was managed with total para- that can initially resemble a periapical lesion. Man, 42, came to the thyroidectomy. Computed tomography revealed marked osseous Oral Lesions Reference Center at UEFS complaining of “tooth expansion on the right side of the maxilla and discrete expansion numbness and swollen gums” and loss of sensation in the anterior on the right side of mandible and cranial base. The clinical diag- teeth. His history included previous endodontic emergency treat- nosis was brown tumor. Incisional biopsy led to a diagnosis of ment of units 1.1 and 2.1. The extraoral examination demonstrated renal osteodystrophy.
    [Show full text]
  • The Urinary Tract Urothelial Carcinoma of the Renal Pelvis and Ureter
    2 Urothelial Carcinoma of the Renal Pelvis and Ureter The Urinary Tract Definition ............................................................................................ Carcinoma arising in the epithelium of the upper urinary tract. " Epidemiology Three times more common in men than women · Peak incidence: Sixth decade · Annual incidence in Europe and the USA: 20 in 100 000. " Etiology Smoking is the single most important risk factor · A genetic disposition has been proposed but its influence seems to be small · Papillary carcinoma is the most common type · Muscle invasion (T2 tumors) is paramount for staging, treat- ment, and prognosis. Imaging Signs ............................................................................................ " Modality of choice Biphasic CT with CT IVP. " Pathognomonic findings Irregular polypoid filling defect in the collecting system. " CT and MRI findings Irregular polypoid intraluminal mass with only slight contrast enhancement · The collecting system proximal and distal to the tumor may be enlarged. " Intravenous pyelogram findings Isolated or multiple filling defects within the collecting system · Dilatation of a single calix (hydrocalix) or the entire collecting system (hydronephrosis, hydro- ureter). Clinical Aspects ............................................................................................ " Typical presentation Painless hematuria. " Treatment options Curative: Radical resection (nephroureterectomy with partial bladder resec- tion) · Palliative: Radiotherapy, chemotherapy.
    [Show full text]
  • Odontogenic Cysts, Odontogenic Tumors, Fibroosseous, and Giant Cell Lesions of the Jaws Joseph A
    Odontogenic Cysts, Odontogenic Tumors, Fibroosseous, and Giant Cell Lesions of the Jaws Joseph A. Regezi, D.D.S., M.S. Oral Pathology and Pathology, Department of Stomatology, University of California, San Francisco, San Francisco, California ologic correlation in assessing these lesions is of Odontogenic cysts that can be problematic because particular importance. Central giant cell granuloma of recurrence and/or aggressive growth include is a relatively common jaw lesion of young adults odontogenic keratocyst (OKC), calcifying odonto- that has an unpredictable behavior. Microscopic di- genic cyst, and the recently described glandular agnosis is relatively straightforward; however, this odontogenic cyst. The OKC has significant growth lesion continues to be somewhat controversial be- capacity and recurrence potential and is occasion- cause of its disputed classification (reactive versus ally indicative of the nevoid basal cell carcinoma neoplastic) and because of its management (surgical syndrome. There is also an orthokeratinized vari- versus. medical). Its relationship to giant cell tumor of ant, the orthokeratinized odontogenic cyst, which is long bone remains undetermined. less aggressive and is not syndrome associated. Ghost cell keratinization, which typifies the calcify- KEY WORDS: Ameloblastoma, CEOT, Fibrous dys- ing odontogenic cyst, can be seen in solid lesions plasia, Giant cell granuloma, Odontogenic kerato- that have now been designated odontogenic ghost cyst, Odontogenic myxoma, Odontogenic tumors. cell tumor. The glandular odontogenic cyst contains Mod Pathol 2002;15(3):331–341 mucous cells and ductlike structures that may mimic central mucoepidermoid carcinoma. Several The jaws are host to a wide variety of cysts and odontogenic tumors may provide diagnostic chal- neoplasms, due in large part to the tissues involved lenges, particularly the cystic ameloblastoma.
    [Show full text]