Endoscopic retrograde cholangiopancreatography demonstrates bile duct obstruction. Endoscopic retrograde cholangiopancreatography indicates bile duct obstruction from an intraductal soft tissue lesion. Contrast injection above the level of filling defect showed a markedly dilated left and right hepatic duct, estimated to be approximately 10 to 12 mm on each side. The filling defect was estimated to be approximately 20 mm in length (red arrows). There was some notable filling defect within the left intrahepatic duct as well.