Rare Case of a Combined Cholecystocolonic and Cholecystoduodenal Fistula Presenting With Pneumobilia.

Cholecystoenteric fistulae are rare complications of gallstone disease, with a reported incidence of 0.5% to 0.9% of cholecystectomies. Cholecystoduodenal is the most common fistula followed by cholecystocolonic fistulae. We report a case of pneumobilia resulting from a combined cholecystoduodenal and cholecystocolonic fistulae treated with a laparoscopic subtotal cholecystectomy and open repair of the enteric fistulae. Combined cholecystoduodenal and cholecystocolonic fistulae are an extremely rare complication of gallstone disease, and meticulous preoperative planning and operative dexterity are needed to safely manage these unusual fistulae.