Outcome of a session of extracorporeal shock wave lithotripsy before endoscopic retrograde cholangiopancreatography for problematic and large common bile duct stones

Figure 1 Large stones in the common bile duct were cracked by extracorporeal shock wave lithotripsy (A) and cleared by following endoscopic retrograde cholangiopancreatography (B and C), common bile duct strictures were dilated using a balloon, and passage dilating catheters were used to retrieve the stones (D).