53-year-old woman with history of right upper quadrant pain, nausea, and vomiting. ABDOMEN:LIVER, BILIARY TRACT: The liver parenchyma appears normal.The patient is status post cholecystectomy. There is mild intra and extrahepatic biliary duct dilatation with the common bile duct measuring up to 8 mm to the level of the distal common bile duct.SPLEEN: Spleen is normal.PANCREAS: The pancreas is normal and there is no mass in the pancreatic head. Pancreatic duct size is at the upper limits of normal.ADRENAL GLANDS: Adrenal glands are normal.KIDNEYS, URETERS: The kidneys are normal and enhance symmetrically.RETROPERITONEUM, LYMPH NODES: No significant lymphadenopathy noted.BOWEL, MESENTERY: The partially visualized small bowel and colon are normal.BONES, SOFT TISSUES: Small perineural cysts are noted.OTHER: No significant abnormality noted.
Mild intra and extrahepatic biliary duct dilatation, likely due to a benign stricture at the level of the distal common bile duct or ampulla (latter considered less likely considering pancreatic duct only measures upper limits normal). No obstructing mass or stone identified.