[A case of vesicosigmoidal fistula].

The clinical course of a case of vesicosigmoidal fistula is presented. The patient, a 76-year-old woman, became aware of terminal micturition pain and pollakisuria in February, 1985. She was first treated under the diagnosis of cystitis to be relieved of her subjective symptoms, although there was no improvement of pyuria. She also began to feel lower abdominal pain on April 3, 1985. After various examinations including intravenous pyelography, enteroclysis and cystoscopy the diagnosis of vesicosigmoidal fistula originating from sigmoid diverticulitis was established. Careful observation at operation revealed remarkable adhesion among the sigmoid colon, bladder, uterus and left ovary. The sigmoid colon, was resected followed by end-to-end anastomosis. Because of considerably extensive inflammatory changes over the mucosal membrane of the bladder, the hole of fistula on the vesical wall was simply closed from outside of the bladder without performing partial cystectomy. Histological examination only demonstrated non-specific inflammatory changes without evidence of malignancy. She had a favorable progress postoperatively.