Poroid hidradenoma over dorsum of the hand

Abstract

Poroid hidradenoma is a rare, benign cutaneous neoplasm which presents as a solitary swelling. It has eccrine differentiation with features of both hidradenoma and poroma. We hereby present a case of a 50-year-old female patient with a slowly growing asymptomatic lesion over the dorsum of the left hand for 1½ years. Histopathology was consistent with poroid hidradenoma. The hidradenoma component consists of solid and cystic areas and poroma by poroid and cuticular cells. There was no recurrence of the lesion after 1 year of follow-up. Very few cases of poroid hidradenoma have been reported in the literature.

Keywords

• eccrine duct tumor
• hidradenoma
• poroma