Macroscopic appearance of the major duodenal papilla influences bile duct cannulation : a prospective multicenter study by the Scandinavian Association for Digestive Endoscopy Study Group for ERCP
Background and Aims: Certain appearances of the major duodenal papilla have been claimed to make cannulation more difficult during ERCP. This study uses a validated classification of the endoscopic appearance of the major duodenal papilla to determine if certain types of papilla predispose to difficult cannulation. Methods: Patients with a naïve papilla scheduled for ERCP were included. The papill