Biliary endoscopic sphincterotomy: Techniques and complications

Figure 4 It may be safer to terminate endoscopic sphincterotomy early and switch to balloon dilation of the papilla in patients with periampullary diverticula. A: Papilla is located on the edge of the diverticulum at 7 o’clock; B: A small sphincterotomy could be made because of difficulty in maintaining appropriate position; C: Papilla is dilated with a 12-mm balloon, D: A notch on the balloon is seen.