LAUSR

Internal biliary fistula is a potentially serious complication of laparoscopic cholecystectomy [1]. Biliary-colonic fistula is a rare type of internal biliary fistula. Formation of a biliary-colonic fistula can occur as the result of surgical injury, stone obstruction, and biliary hypertension. More infrequent causes include intestinal ulcer and malignant tumor. The formation of a fistula also has the effect of infection and inflammation. While very few cases of biliary-colonic fistulas have been reported, these cases typically present with the aforementioned clinical presentations [2, 3]. In the present case, a biliary-colonic fistula resulting from bile-duct injury after laparoscopic cholecystectomy was identified by endoscopic retrograde cholangiopancreatography (ERCP). We innovatively adopted ERCP combined with colonoscopy to clamp the sinus tract for the patient.