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14 Cards in this Set
- Front
- Back
- 3rd side (hint)
Ovary |
Mucinous cystadenocarcinoma of ovary, grade 1 |
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Retroperitoneum in 79 year old with metastatic colon cancer |
Sclerosing extra medullary hematopoiesis |
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Bladder |
Urothelial ca micro papillary pattern |
MPUC highly invasive Bad prognosis On histology: finger-like tumor processes clusters in superficial tissue and more cohesive in deep tissue with polarization of the nuclei to the peripheral aspect of the papillae Prominent retraction artifact Multiple tumor cells present in the same lacunae is the most useful feature |
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Inguinal LN Ck20+ Psa- Ttf1- |
Merkel Also positive for cd99, pax5 |
MCV virus polyoma virus linked to the pathology |
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Colon |
Pseudomembranous colitis! Note lamina propria is not expanded and no hyalinazation unlike ischemic colitis |
Due to c diff toxin and antibiotic therapy clinda, cyclo and ampicillin
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polyp |
Peutz-jeghers polyp |
AD Muccucutanous pig Polyps mainly jujenum Sex cord stromal tumor with anular tubules. Ovary. Large cell calcifying Sertoli cell tumor ( testes) |
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Mesentery |
SFT Positive: cd99, bcl2, cd34 |
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What tumors have staghorn vessels? |
Synovial sarcoma SFT Mesenchymal condrosarcoma |
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Ovary |
Immature teratoma |
How to grade it? Number of 4x field with immature component. Grade 1 less than 1 with that component Grade 2: 1-3 fields with immature Grade 3: more than 3 fields contain immature
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Vulva What stains? |
Extra mammary paget!! Ck7+ Ema+ Cam5.2+ Er- Pr- S100- Hmb45- |
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Thigh mass in 33 year old |
LGFMS Fus/cerb t(7,16) Remember spindle cell tumor with giant rosette is a subtype of LGFMS |
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Kidney mass in a 3 year old kid |
Congenital mesoblastic nephroma interlacing fascicles of fiber elastic appearing cells with thin tapered bland appearing nuclei. Low mitotic count and abundant stromal collagen Stains : actin+ Vimentin+ Bcl2- Cd34- Ck-
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Kidney adult |
ADPKD |
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Kidney tumor? What stains? What type? (1 or 2) |
Papillary RCC Type 1- line by single layer of cells with no pleomorphism and absent nucleoli Stains: vimentin+, cd10+, amacr+, ck7+ tfe3-
Note type 2 is opposite to the description of type 1 |
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