Malignant Brenner tumor: a case of aggressive clinical course and cutaneous metastases.

Malignant Brenner tumor is a very rare ovarian tumor of which the definition of this entity and its biologic behavior remain controversial to this day. In this case report a 30-year-old patient with malignant Brenner tumor was presented with an aggressive clinical course and cutaneous metastases. The disease progressed from apparently unilateral ovarian involvement to intraabdominal, lung and cutaneous metastases. She expired within two months of diagnosis of disease. The histopathology of the ovarian tumor and the metastatic skin lesion are illustrated. In the authors' opinion this case should be categorized as a transitional cell carcinoma of the ovary.