Eccrine angiomatous hamartoma – A rare painful skin tumor

Abstract

We report a 68-year-old male with a progressively enlarging, reddish raised painful lesion on the right arm for the previous 3 years. The starch iodine test was positive, dermoscopic findings were yellowish-brown globules on an erythematous background. Biopsy from the lesion showed the presence of eccrine glands, hair follicles, and lobules of capillary sized vessels surrounding hair follicles in the dermis. On immunohistochemistry, epithelial membrane antigen (a marker for eccrine gland) and CD31 (endothelial marker) were positive. A final diagnosis of eccrine angiomatous hamartoma (EAH) was made. There should be a high index of suspicion about EAH if the skin lesions are reddish and tender with associated localized sweating.