Late-phase complications of the intestinal and the urinary tracts due to radiation therapy are very difficult to manage, and ensuing fistulation sometimes necessitates surgrey. We report excellent surgical results for a fistula incuded by radiation therapy in a 61-years-old woman. There were previous histories of receiving combined surgical and radiation (up to 10,000 rad) therapy for a uterine cervical carcinoma at another hospital in 1990, and undergoing several surgical treatments for the consequenct vesico-enteral and vesico-colic fistulas. In January, 1993, the patient was admitted to the department of urology of this hospital because of an abdominal pain, and was transferred to the department under a diagnosis of entero-cutaneous and vesico-enteral fistulas. After local sump suction and skin care, resection of the fistula and involved small intestine conserving the urinary tract was performed, and the omentum was transferred to the resected space. Cholecystectomy was carried out for cholelithiasis. Histological studies revealed atrophy in the mucosal layer and edema in the submucosal layer. Her postoperative course has been satisfactory without any signs of fistulation as of one year after the operation. (author).