Benign myoepithelioma of the skin.


A case of cutaneous myoepithelioma is reported. The tumor was composed of spindle-shaped, epithelioid, and plasmacytoid (hyaline) cells. It exhibited a widespread immunoreactivity for low molecular weight keratins and protein S-100, being irregularly positive for smooth muscle actin. Ultrastructural studies of tumor cells showed a variable content of… (More)


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