[Poroma: a typical presentation].

Poroma is a rare, benign, appendage tumor. Clinically, it presents as a solitary, slowly growing tumor situated mostly on the palms and soles of adults. Occasionally, poroma mimics malignant tumors. Histological examination reveals aggregations of poroid cells extending into the epidermis. Dermoscopy may be useful in some cases. Treatment is by surgical excision. We report a case of a typical clinical and histopathological presentation in a 26-year-old woman and emphasize the importance of this lesion in the differential diagnosis of other tumors on the palms and soles.