Cutaneous epithelioid angiosarcoma: a potential diagnostic trap for cytopathologists.
We report on the cytologic features of a rare case of cutaneous epithelioid angiosarcoma of the scalp occurring in a 65-yr-old Chinese male. The prominent epithelioid features may cytologically mimic poorly-differentiated carcinoma, malignant melanoma, and even epithelioid sarcoma. Recognition of subtle cytologic features of vasoproliferation, immunohistochemical demonstration of endothelial markers, and ultrastructural examination are necessary before a final conclusion may be drawn.
Ng
W K
WK
Department of Pathology, University of Hong Kong, Queen Mary Hospital, Hong Kong.
Collins
R J
RJ
Law
D
D
Gwi
E
E
D000368:Aged; D003581:Cytodiagnosis; D003593:Cytoplasm / Q000648:ultrastructure; D015622:Epithelioid Cells / Q000473:pathology* / Q000648:ultrastructure; D006394:Hemangiosarcoma / Q000175:diagnosis* / Q000473:pathology; D006801:Humans; D008297:Male; D008854:Microscopy, Electron; D012878:Skin Neoplasms / Q000175:diagnosis* / Q000473:pathology