A case of extrarenal nephroblastoma localized in the retroperitoneal.

Abstract

We report a rare case of extrarenal nephroblastoma in childhood. A 5-years-old boy was admitted with a complaint of vomiting and abdominal mass. He underwent extirpation of an encapsulated tumor located in the right retroperitoneum. But both kidneys were intact. Histopathological examination showed extrarenal nephroblastic-type nephroblastoma. Although extrarenal nephroblastoma is very rare, it should be kept in mind as a differential diagnosis of retroperitoneal tumor in children.