A Pedunculated Eccrine Poroma Presented as a Skin Tag on the Right Thigh of a Female Individual: A Case Report

Poroma is a relatively rare benign adnexal neoplastic lesion that usually affects elderly patients in the extremities, with an unclear pathogenesis. It is notable for having a variety of morphological appearances that make diagnosis challenging, particularly when observed on an uncommon anatomical site. Here, we present a case of a woman in her mid-50s who presented with a skin pedunculated lesion over the right thigh. The lesion had a smooth surface and clinically mimicked a skin tag. The lesion was surgically excised and sent for histopathology. On microscopic examination, anastomosing cords and broad columns of more or less uniform basaloid cells extending to the dermis with no atypical changes were seen, confirming the diagnosis of eccrine poroma. It is emphasized that poromas should be considered in the clinical and histological differential diagnosis of nonacral skin lesions. Complete excision cures the condition and prevents local recurrence.