Adult extrarenal Wilms' tumor. A case report.

Wilms' tumor or nephroblastoma is a malignant tumor of childhood and there are less than 200 cases in adults reported in the literature. An extrarenal location is also a rare situation for these tumors. A 48-year-old patient, referred to our gynecology department because of an abdominal mass, was operated on with a preoperative diagnosis of a possible ovarian tumor. The diagnosis of an extrarenal Wilms' tumor (ERWT) was made pathologically. Since it is a very rare entity, ERWT of adult origin is presented and the related literature is reviewed.