Dermatopathology Slide Review Part 152
Paul K. Shitabata, M.D.Dermatopathology Institute
Torrance, CA
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CK 20
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Synaptophysin
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Merkel Cell Carcinoma
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Hyperchromatic cells with nuclear molding and
stippled nuclear chromatin
Paranuclear Dot-like positivity
with Cytokeratin stains
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Dermatofibroma with Sclerosing
Hemangioma Features
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Spindle cells with Touton-type Giant Cells
Hemorrhage and hemosiderin macrophages
Spindle Cells Entrapping Collagen
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Verruca Plana
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Superficial Koilocytes
Minimal Cytologic Atypia
Minimal to absent Papillomatosis
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Leukocytoclastic Vasculitis
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Must have Fibrinoid Necrosis
Extravasated rbcs
Nuclear Dust
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Sebaceous Adenoma
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Circumscribed lobules of mature sebaceous lobules
Basal layer surrounding sebocytes
Minimal Atypia
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