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Keywords： renal transplantation, recipient, ovarian tumor, radiation therapy, anastomotic failure 〈Abstract〉 ［Background］ Radiation therapy is known to cause radiation arteritis or ureteral anastomotic failure due to adhesion or impaired blood flow. We performed a living renal transplantation for a recipient with a history of whole pelvic radiation therapy for an ovarian tumor 34 years prior to the surgery. ［Case presentation］ The recipient and donor passed the preoperative diagnosis successfully. Abdominal CT of the recipient showed no signs of calcification or strictures or vascular endothelial hyperplasia of the internal iliac artery or external iliac vein. The surgery was performed in 7 hours without vascular anastomotic problems. The first urine was noted 12 minutes after vascular anastomosis. The surgery was considered to have proceeded without complications. However, on post operative day 11, ureteral anastomotic leak occurred. The recipientʼs serum examination showed creatinine

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A 8-year-old boy with acute lymphocytic leukemia (ALL) had received chemotherapy and a complete bone marrow remission was obtained. Then he underwent bone marrow transplantation. After 6 months, he suddenly got left flank-low abdominal pain. Sequentially, he had swelling and redness of left scrotum, left testicular swelling and tenderness. Incision was done and enlarged and hard testis was diagnosed as testicular tumor, left orchiectomy was performed. Histological diagnosis was involvement of ALL, so he received radiotherapy. He remains free of disease by the present after 7 months.