Fig. 3From: Wire-guided cannulation over a pancreatic stent versus double guidewire technique in patients with difficult biliary cannulationSchematic presentation of the stepwise approach using double guidewire technique followed by wire-guided cannulation over a pancreatic stent as needed. a Double guidewire technique. b Wire-guided cannulation over a pancreatic stent. c Needle knife fistulotomy over a pancreatic stentBack to article page