[A case of sigmoidovesical and ileovesical fistula with bladder papilloma complicating colonic diverticulitis].

The clinical course of sigmoidovesical and ileovesical fistula due to rupture of colonic diverticulitis is reported. The patient, a 41-year-old male, who had been suffering from intestinocutaneous fistula for 16 months since drainage of abdominal abscess had chief complaints of cloudy urine and fecaluria. Cystoscopic examination revealed bladder papilloma land edema at the apex area of the bladder. Abscess and fistula were identified with transurethral ultrasonotomography and fistulography, respectively. Primary resection was performed after intravesical instillation of mitomycin-C and postoperative course was uneventful. Histological findings of the specimen revealed disappearance of bladder papilloma for the instillation therapy. Statistical analysis was made on 73 cases of sigmoidovesical fistula due to colonic diverticulitis reported in Japan including my own case.