Figure 1. Preprocedural images and images during ERCP in group A.
a. Computed tomography image. A common bile duct stone with a diameter of 5 mm was observed in distal bile duct. (red arrow).
b. Guidewire was inserted into the common bile duct after selective biliary cannulation.
c. Cholangiogram. A common bile duct stone with a diameter of 5 mm was observed in distal bile duct. (yellow arrow).
d. Endoscopic sphincterotomy was performed to extract the stone.
e, f. A common bile duct stone was completely extracted using a basket catheter.
g. No residual stones were observed via cholangiogram using a balloon catheter.
From: Post-endoscopic Retrograde Cholangiopancreatography Pancreatitis after Conservative Treatment for Symptomatic Bile Duct Stones
![](/assets/10.31662_jmaj.2022-0165/JMAJF22016501.jpg)
Figure 2. Preprocedural images and images during ERCP in group B.
a. Computed tomography image. Two common bile duct stones with a diameter of 6 mm and 4 mm were observed in distal bile duct. (red arrowheads).
b. Guidewire was inserted into the common bile duct after selective biliary cannulation.
c. Cholangiogram. Two common bile duct stones with a diameter of 6 mm and 4 mm were observed in upper bile duct. (yellow arrowheads).
d. Endoscopic sphincterotomy was performed to extract the stones.
e. Common bile duct stones were completely extracted using a basket catheter.
From: Post-endoscopic Retrograde Cholangiopancreatography Pancreatitis after Conservative Treatment for Symptomatic Bile Duct Stones
![](/assets/10.31662_jmaj.2022-0165/JMAJF22016502.jpg)