EUS diagnosis of ectopic opening of the common bile duct in the duodenal bulb: A case report

Figure 1 Endoscopic image: deformed duodenal bulb with slit-like opening (black arrow).

Figure 2 EUS image. A: EUS image: dilated common bile duct (thick arrow) with stones and air (thin arrows) draining in the bulb; B: EUS image: dilated common bile duct with stones (black arrow) in the lumen; C: EUS image: unchanged main pancreatic duct (black arrow) with parenchymal irregularity (white arrows).

Figure 3 ERCP image. A: ERCP image: dilated biliary tree filled with stones cannulated from the duodenal bulb; B: ERCP image: the main pancreatic duct making the loop in the pancreatic head.

Figure 4 Extracted biliary stones.