Percutaneous transhepatic extraction and balloon dilation for simultaneous gallbladder stones and common bile duct stones: A novel technique

Figure 3 Empty balloon was then withdrawn above the stones, inflated, and used to push the stones into the duodenum through the sphincter of Oddi. A: The empty balloon was withdrawn above the common bile duct stones (white arrow) and then re-inflated. B: The common bile duct stones (white arrow) were pushed into the duodenum through the dilated sphincter of Oddi.