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Fig. 2. —48-year-old man with chronic renal failure, right upper quadrant pain, fever, and chills. Percutaneous transhepatic cholangiogram obtained through transhepatic drain shows mild fusiform dilatation of extrahepatic bile ducts. Multiple strictures (open arrow) and saccular dilatations (solid arrow) of right anterior segmental intrahepatic bile ducts are seen. Remainder of visualized intrahepatic bile ducts appears normal. Narrowing from normal sphincter mechanism is visible in distal common bile duct.