RESUMO
Malignant clear cell hidradenomas are rare tumors originating from the eccrine sweat gland. Usually, they are malignant from their inception, but some develop from benign nodular hidradenomas. Although there is insufficient evidence in the literature, the recurrence rate may be estimated at about 50%, and the metastasis rate is about 60%, including regional nodes, bone, viscera, and the skin. We report a case of malignant clear cell hidradenoma in a 63-year-old woman, who had a 3-year history of asymptomatic pea sized hard solitary nodules on the right forearm. Despite repetitive surgical excisions, the lesions were recurred 5 times. To our best knowledge this is the first case of malignant clear cell hidradenoma in the Korean dermatologic literature.
Assuntos
Feminino , Humanos , Pessoa de Meia-Idade , Acrospiroma , Antebraço , Metástase Neoplásica , Pisum sativum , Recidiva , Pele , Glândulas Sudoríparas , VíscerasRESUMO
Malignant clear cell hidradenoma is a rare eccrine gland malignancy characterized by a solitary nodule on the head, trunk or distal extremity. We report a case of malignant clear cell hidradenoma in the left sole of a 66 year old female patient. Despite wide resection, regional lymph node dissection and radiation therapy, wide spread regional invasion and multiple distant metastasis were developed. As the malignant clear cell hidradenoma is reported rarely in the world and not yet reported in Korea, we report its clinical process of the diagnosis and treatment to patient's death.