Endoscopic salvage therapy after failed biliary cannulation using advanced techniques: A concise review

Figure 1 Interval endoscopic retrograde cholangiopancreatography, 1 d after the initial procedure. A: The original papilla in the initial endoscopic retrograde cholangiopancreatography (ERCP); B: Post-precut papilla, at the end of initial ERCP; C: post-precut papilla, at the beginning of interval ERCP. The papilla is swollen, edematous, and with mild oozing; D: Deep bile duct cannulation is unsuccessful during the interval ERCP, even after the placement of a pancreatic stent.