Small sphincterotomy combined with endoscopic papillary large balloon dilation vs sphincterotomy alone for removal of common bile duct stones

Figure 2 Endoscopic view of large-balloon dilation following limited sphincterotomy. A: Endoscopic small sphincterotomy; B: A large balloon inflated across the papilla; C: Markedly dilated papilla following large-balloon dilation; D: A large stone extracted using a retrieval balloon catheter through the dilated papilla.