Spontaneous cholecystocutaneous fistula: empirically treated for a missed diagnosis, managed by laparoscopy

A 70-year-old woman was referred to our hospital from primary health centre with complaints of pain in the abdomen, swelling and discharging sinus in the right hypochondrium since 2 years. She had received anti-tubercular treatment for 18 months as the wedge biopsy of the sinus tract suggested granulomatous lesion. As the symptoms did not subside she was referred to our hospital. Her blood investigation reports at our hospital were normal. Ultrasound of the abdomen suggested cholelithiasis with normal common bile duct. CT fistulogram findings were diagnostic of cholecystocutaneous fistula (CCCF). She underwent laparoscopic cholecystectomy and excision of the sinus tract. Postoperative recovery was uneventful. Indiscriminate usage of anti-tubercular drugs should be discouraged and possibility of CCCF should be considered in patients presenting with discharging sinus in the anterior abdominal wall. CT fistulogram is helpful in making diagnosis of CCCF. Cholecystectomy with excision of the sinus tract is the treatment of choice.