<prompt> The treatment of gallstone ileus is -Cholecystectomy aloneRemoval of obstructionCholecystectomy, closure of fistula and removal of stone by enterotomyCholecystectomy with closure of fistula  <response>: The treatment priority should focus on relief of obstruction and not on gallbladder and its fistulous communication. So the procedure of choice is Laparotomy with stone extraction. The gallbladder disease can be dealt on later, which includes cholecystectomy and closure of the fistulous tract Ref -Bailey Love, 25e p1190 