Radiographic finding during ERCP intervention. Common bile duct is within normal width of lumen with calculus of approx. 15 mm in projection of bifurcation of ductus hepaticus communis. Visible intrahepatic bile ducts are of normal width of lumen. During procedure patient was erected into stand-up position and radioscopy confirms normal elimination of contrast out of bile ducts and pancreatic duct with no signs of elimination of calculus (X-ray radioscopy).