Metastatic Sarcoma to Review and Correlate 70 (Rhabdomyosarcoma 40%, with Previous Paraspinal Malignant Rhabdoid Tumor Pathology
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ref code case diagnosis comment score 2289 448 AP221 Lung - metastatic sarcoma To review and correlate 70 (rhabdomyosarcoma 40%, with previous paraspinal malignant rhabdoid tumor pathology. To apply 40%, anaplastic Wilm's immunostaining to assist in tumour 20%) tumour classification. 2290 222 AP221 pleuropulmonary blastoma nil 50 2299 246 AP221 Metastatic malignant Panel of IHC stains: muscle 80 neoplasm; DDx rhabdoid specific actin, desmin, tumour (50%), myoD1, cytokeratin, EMA, rhabdomyosarcoma (50%) S100. EM: tangled intermediate filaments (in rhabdoid tumour) 2307 873 AP221 Malignant tumour, favour nil 50 rhabdomyosarcoma. Perform staining for desmin, myoD1 and actin (100% probability) 2324 663 AP221 Lung mass, excision - nil 50 Malignant tumor, favour metastatic sarcoma. Differential diagnosis includes metastatic poorly differentiated sarcoma, clear cell sarcoma of kidney and paraganglioma. 2332 911 AP221 Malignant biphasic tumour. Immunohistochemical stain 50 Metastatic nephroblastoma for EMA, Cam5.2, CD99 (50%). Poorly differentiated and bcl-2. synovial sarcoma (50%). RT-PCR for SYT-SSX translocation. 2340 109 AP221 Malignant tumour (100%) Malignant tumour, likely 50 metastatsis, has to correlate with previous tumour site and morphology for definitive diagnosis. Differential diagnoses include Wilm's tumour, synovial sarcoma, need to exclude germ cell tumour such as yolk sac tumour. 2350 369 AP221 Malignant neoplasm. DDx Do neuron specific enolase, 60 among neuroblastoma, synaptophysin, rhabdoid tumor( including chromogranin, atypical teratoid/rhabdoid neurofilament and NB84 tumor), which will be positive in rhabdomyosarcoma, and neuroblastoma. Wilm's tumor. Do EMA, vimentin and smooth muscle actin which will be mostly positive in ATRT. Also negative stain for INI1. Do myogenin which will be positive for rhabdomyosarcoma. Do WT1 which will be positive in Wilm's tumor. 2352 369 AP221 Forget to add the Nil. 0 probability of 100% in the previous submitted answer. 2353 517 AP221 METASTATIC SUGGEST 50 MALIGNANT TUMOUR IMMUNOHISTOCHEMICAL 100% STUDY IE MYOGENIN, DDX MYOD1, DESMIN, S100 RHABDOMYOSARCOMA, PROTEIN PERIPHERAL NERVE SHEATH TUMOUR 2362 338 AP221 Malignant tumor consistent Do immunostains eg. 50 with metastases. Favor a Myo-D1, desmin, AFP, sarcoma as primary. 100%. S100 etc The differential includes 1)Rhabdomyosarcoma 2)Leiomyosarcoma 3)Germ cell tumor 4)Neuroblastoma 5)Melanoma. 2370 763 AP221 High grade malignant tumor There are areas of 60 (likely metastatic) apparent biphasic epithelioid-spindle cell pattern and some rhabdoid cytomorphology. Differential diagnoses include synovial sarcoma, rhabdoid tumor, pleuropulmonary blastoma and primitive neuroectodermal tumor etc. Suggest correlation with histology, immunohistochemistry, molecular studies and radiological findings of the lung and paraspinal masses. 2378 333 AP221 Metastatic malignant Review previous paraspinal 100 spindle cell tumor (100%), tumor; differential diagnoses are Immunostaining : myoid rhabdomyosarcoma (10%), markers (myogenin, rhabdoid tumor(80%), desmin, actin) for PNET(3%), malignant rhabdomyosarcoma; peripheral nerve sheath cytokeratins for rhabdoid tumor(4%), neuroblastoma tumor, loss of INI1 in (3%). rhabdoid tumor, CD99 for PNET, S100, neuronal markers for neurogenic tumor. 2386 530 AP221 Metastatic sarcomatous Immunohistochemistry to 50 lesion. Differential differentiate especially diagnosis: - myogenin, desmin, EMA, Rhabdomyosarcoma; - ect. Synovial sarcoma. 2394 888 AP221 High-grade sarcoma, 1. Perform immunostains 50 differential diagnoses for differentiation: Synovial 1. Metastatic synovial sarcoma positive for EMA, sarcoma (50%) bcl-2, CD99; MPNST 2. Metastatic malignant positive for S100, Wilm peripheral nerve sheath tumour positive for WT1 tumour with glandular and PNET positive for differentiation (30%) chromogranin and 3. Metastatic Wilm synaptophysin. tumour (10%) 2. Retrieve old slides for 4. Metastatic Ewing assessment. tumour/PNET (10%) 2403 515 AP221 Metastatic malignant nil 50 tumour DDx: Wilm's tumour & rhabdomyosarcoma 2282 448 AP222 Endometrium - Complex Need follow up 50 hyperplasia with papillary aspirate/curettage or syncytial change and examination of uterus eosinophilic metaplasia specimen (if hysterectomy 100% done for other reason) to rule out malignancy. 2291 222 AP222 complex hyperplasia with nil 50 papillary syncytial metaplasia 2300 246 AP222 Endometrioid nil 100 adenocarcinoma, Grade 1, with focal microglandular pattern (100%) 2308 873 AP222 Mixed endometrioid and nil 90 serous adenocarcinoma (100% probability) 2315 369 AP222 Endometrioid This aspirate shows FIGO 100 adenocarcinoma.(100%) grade I. 2325 663 AP222 Endometrium - nil 100 Endometrioid adenocarcinoma, secretory variant 2333 911 AP222 Endometrioid nil 100 adenocarcinoma (100%). 2341 109 AP222 Atypical complex nil 80 hyperplasia with papillary syncytial metaplasia (100%) 2355 517 AP222 ENDOMETRIOID nil 100 CARCINOMA 100% 2363 338 AP222 Endometrioid nil 100 adenocarcinoma with florid microglandular pattern FIGO grade 1, in a background of atypical hyperplasia. 100% 2371 763 AP222 At least atypical complex Suggest more sampling to 80 hyperplasia and papillary exclude endometrial syncytial metaplasia carcinoma 2379 333 AP222 Endometrioid This tumor biopsy exhibits 100 adenocarcinoma features of microglandular hyperplasia-like change, and eosinophilic metaplasia. 2387 530 AP222 Complex atypical nil 80 hyperplasia with papillary syncytial metaplasia, focally bordering on Adenocarcinoma. 2395 888 AP222 Endometrioid nil 100 adenocarcinoma (100%) 2404 515 AP222 Endometrioid nil 100 adenocarcinoma, low grade. 2283 448 AP223 Kidney - composite nil 100 Papillary carcinoma and Tubulocystic carcinoma 100% 2292 222 AP223 papillary renal cell nil 90 carcinoma 2301 246 AP223 Renal cell carcinoma, If there is clinical history of 90 mixed pattern (conventional end stage renal failure, the & papillary) (100%) diagnosis would be acquired cystic disease associated Renal cell carcinoma 2309 873 AP223 Multilocular cystic renal cell nil 80 carcinoma (100% probability) 2316 369 AP223 Renal cell nil 80 carcinoma.(100%) 2326 663 AP223 Kidney - Renal cell The overall features are 80 carcinoma, grade 2 suggestive of renal cell (Fuhrman) carcinoma complicating acquired cystic disease secondary to chronic dialysis. The prognosis is better than sporadic cases. 2334 911 AP223 Tubulocytic carcinoma Immunohistochemical stain 95 (100%). for CK7. 2342 109 AP223 Papillary renal cell nil 90 carcinoma (100%) 2356 517 AP223 PAPILLARY RENAL CELL nil 90 CARCINOMA TYPE II NUCLEAR GRADE 2 100% 2364 338 AP223 Tubulocystic carcinoma nil 100 with a component of papillary renal cell carcinoma, Furhman nuclear grade 3 out of 4. 100% 2372 763 AP223 Renal cell carcinoma There are focal cystic and 90 papillary areas. Suggest correlation with clinical history for evidence of acquired cystic disease of kidney and history of renal dialysis. 2380 333 AP223 Papillary renal cell Correlate with clinical 90 carcinoma (associated with finding of presence of acquired renal cystic end-stage renal disease. disease) 2388 530 AP223 Renal cell carcinoma, nil 90 papillary variant. 2396 888 AP223 Papillary renal cell nil 90 carcinoma (100%) 2402 515 AP223 Papillary renal cell nil 90 carcinoma 2288 448 AP224 Submandibular mass - To be differentiated by 100 Solitary fibrous tumour 90% immunostaining. SFT is - Myofibroma 10% actin-ve. 2293 222 AP224 solitary fibrous tumor nil 100 2302 246 AP224 Haemangiopericytoma IHC stain: CD34 (expected 80 (100%) to be positive) 2310 873 AP224 Vasoformative tumour DDx: nil 80 hemangiopericytoma, haemangioendothelioma, solitary fibrous tumour, cellular hemangioma (100% probability) 2327 663 AP224 Submandibular mass - The diagnosis can be 100 Solitary fibrous tumour. confirmed by immunostaining for CD34. Also rule out vascular tumour and smooth muscle tumour by CD31, smooth muscle actin and desmin. 2335 911 AP224 Solitary fibrous tumour Immunohistochemical stain 100 (100%). for CD34 and CD99. 2343 109 AP224 Solitary fibrous tumour Confirm with immunostain 100 (100%) for CD34. 2354 369 AP224 Vascular neoplasm, favors Do CD31 to confirm 40 capillary hemangioma. DDx vascular channels. includes Do smooth muscle actin to hemangioendothelioma and exclude glomus type tumor. glomus type tumor.(100%) 2357 517 AP224 SOLITARY FIBROUS nil 100 TUMOUR 100% 2365 338 AP224 Solitary fibrous tumor To confirm by CD34 stain. 100 100%. 2373 763 AP224 Benign spindle cell tumor: nil 80 differential diagnoses include myofibroma and solitary fibrous tumor, to be differentiated by CD34 and actin immunostaining 2385 333 AP224 Solitary fibrous tumor Immnostaining for CD34 for 100 (80%) solitary fibrous tumor; actin Cellular capillary to highlight lobulation and hemangioma (20%) pericytes in capillary hemangioma. 2389 530 AP224 Spindle cell tumor. nil 80 Differential diagnosis: Myoepithelioma, Solitary fibrous tumor, Hemangiopericytoma. 2397 888 AP224 Differential diagnosese: Perform immunostains for 60 1. Epithelioid differentiation: Epithelioid haemangioendothelioma haemangioendothelioma (70%) positive for factor VIII, 2. Solitary fibrous tumour CD31 and CD34; SFT (30%) positive for CD34 only. 2405 515 AP224 Solitary fibrous tumour nil 100 2284 448 AP225 Ovary - Brenner tumour nil 100 100% 2294 222 AP225 benign brenner tumor nil 100 2295 222 AP225 benign Brenner tumor nil 100 2303 246 AP225 Benign Brenner tumour nil 100 (100%) 2311 873 AP225 Benign Brenner tumour nil 100 (100% probability) 2317 369