13-year-old female with dilated common bile duct ABDOMEN:LIVER, BILIARY TRACT: The liver parenchyma is normal in morphology without focal hepatic lesion. No significant intrahepatic biliary ductal dilation. There is mild dilation of the mid common bile duct measuring up to 9 mm (series #701, image 53), previously 9 mm. The dilation extends for approximately 2.5 cm (series #701, image 53-58). The gallbladder is distended, though to a lesser degree than on prior examination.SPLEEN: No significant abnormality noted.PANCREAS: No significant abnormality noted.ADRENAL GLANDS: No significant abnormality noted.KIDNEYS, URETERS: No significant abnormality noted. The kidneys demonstrate symmetric enhancement without evidence of hydronephrosis.RETROPERITONEUM, LYMPH NODES: No significant abnormality noted.BOWEL, MESENTERY: The bowel is normal in caliber without evidence of obstruction.BONES, SOFT TISSUES: No significant abnormality noted.OTHER: No significant abnormality noted.
Mild fusiform dilation of the mid common bile duct is not significantly changed from prior examination and may represent a type I choledochal cyst.