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March 1985

Epithelioid Sarcoma: Enzymatic Histochemical and Electron Microscopic Evidence of Histiocytic Differentiation

Author Affiliations

From the Department of Dermatology, University of Minnesota School of Medicine (Drs Padilla and Flynn), Minneapolis, and the Department of Pathology, University of Michigan Medical School, Ann Arbor (Dr Headington). Dr Padilla is now with the University of New Mexico School of Medicine, Albuquerque.

Arch Dermatol. 1985;121(3):389-393. doi:10.1001/archderm.1985.01660030111031

• A 63-year-old man had epithelioid sarcoma. Light microscopy showed the tumor to resemble granuloma annulare. Enzymatic histocytochemical and ultrastructural studies demonstrated the tumor's histiocytic features. Literature review of epithelioid sarcoma and granuloma annulare showed them to have a similar anatomic distribution.

(Arch Dermatol 1985;121:389-393)