Clear cell variant of eccrine porocarcinoma of the hand: A case report

Introduction: Eccrine porocarcinoma (EP) is a rare malignant neoplasm of the acrosyringium with metastatic potential that most commonly presents on the acral skin in older adults. The primary lesions present as verrucous or polypoid nodules or plaques, often with spontaneous bleeding and ulceration, and arise either from a preexisting eccrine poroma or de novo. Only 8% of porocarcinomas occur in the upper extremity and only 3% are on the hand. The histologic characteristics of EP vary a lot so more than one consultation is often needed to establish the diagnosis.