A NEW CASE OF EXTRARENAL NEPHROBLASTOMA

A case of metastatic extrarenal, retroperitoneal Wilms tumor developed in the right adrenal gland in a four-year-old boy is reported. Wilms tumor should be considered in pediatric patients with a juxtarenal ret roperitoneal mass and pulmonary and mediastinal metastases. Computed t omography and ultrasonography are valuable for evaluating tumor spread . Preoperative chemotherapy is helpful, The locations, pathologic feat ures, and etiology of Wilms tum are discussed based on a review of the literature.