Signet ring cell angiosarcoma: a hitherto unreported pitfall in the diagnosis of epithelioid cutaneous malignancies.

Abstract:We report 2 cases of cutaneous epithelioid angiosarcoma featuring predominantly signet ring cells. The patients—a woman, 68 years of age, and a man, 85 years of age, respectively—were referred for slowly growing indurated plaques on their parietal and retroauricular skin. Microscopic examin