“…It can be unsuccessful because of a duodenal diverticulum, duodenal stenosis, ampullar stenosis, unusual biliary anatomy and previous gastrointestinal surgery such as Billroth II reconstruction and bilioenteric anastomosis, and in the presence of the stones larger than 15 mm in diameter and intrahepatic stones, or it may be contraindicated in elderly patients with poor condition [6][7][8][9][10]. In such cases, percutaneous transhepatic approach is indicated and remains an alternative treatment for stone removal [6,7,[9][10][11][12].…”