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Difference between revisions of "Merkel cell carcinoma"
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| Micro = neuroendocrine nuclear features (round nucleus, small nucleoli/no nucleolus, stippled chromatin), usually scant cytoplasm, usually small (~3x resting lymphocyte), often in sheets | | Micro = neuroendocrine nuclear features (round nucleus, small nucleoli/no nucleolus, stippled chromatin), usually scant cytoplasm, usually small (~3x resting lymphocyte), often in sheets | ||
| Subtypes = | | Subtypes = | ||
| LMDDx = [[small cell carcinoma]], cutaneous [[Ewing | | LMDDx = [[small cell carcinoma]], cutaneous [[Ewing sarcoma]], [[Burkitt lymphoma]], other [[small round blue cell tumours]] | ||
| Stains = | | Stains = | ||
| IHC = Merkel cell polyomavirus +ve, CK20 +ve (perinuclear dot-like), CD56 +ve, TTF-1 -ve, CK7 -ve | | IHC = Merkel cell polyomavirus +ve, CK20 +ve (perinuclear dot-like), CD56 +ve, TTF-1 -ve, CK7 -ve | ||