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(a) 1. Transgastric. 2. Transduodenal. (b) Choledochoduodenostomy. (c) Hepaticogastrostomy. (d) Endoscopic ultrasound (EUS)-guided rendezvous technique. Step 1: transgastric bile duct puncture and antegrade transpapillary guidewire insertion (EUS scope) Step 2: retrograde biliary stenting over the transpapillary wire (duodenoscope). (e) Antegrade technique.
