Fig. 2From: Pancreatic duct guidewire placement for biliary cannulation as a risk factor for stone residue after endoscopic transpapillary stone removala Pancreatic duct guidewire placement method (P-GW) for difficult biliary cannulation. b: Stone extraction with the pancreatic duct guidewire in place. c: Placing a pancreatic stent over the guidewire used in the P-GW at the end of the examination for pancreatitis preventionBack to article page