Abdominal external beam radiation (3,000 rads) is our standard treatment for Stage A testicular seminoma. We have encountered 2 patients with localized seminomas, in each of whom excretory urography demonstrated an ipsilateral pelvic kidney. Because of significant risk of radiation nephritis and renal loss in the unshielded ectopic pelvic kideny, retroperitoneal lymphadenectomy is recommended in place of abdominal radiation.