14-year-old male with a history of hereditary spherocytosis presents with abdominal pain and a distal common bile duct stone seen on an outside ultrasound.EXAMINATION: MRI/MRCP with and without IV contrast. 7/1/2016 15:22 ABDOMEN:LIVER, BILIARY TRACT: The common bile duct at the head of the pancreas is dilated up to 0.9 cm with an obstructing common bile duct stone (series 501, image 18). Multiple additional stones are present in the distal common bile duct (series 801, image 36). Mild intrahepatic biliary ductal dilatation. The gallbladder has been removed. No focal hepatic lesions are identified. The hepatic vasculature is patent.SPLEEN: Partial splenectomy has been performed. The residual spleen has a round, bilobed contour. The splenic artery is not clearly visualized.PANCREAS: The pancreas is normal appearance. No pancreatic ductal dilatation or perinephric fluid collection is identified.ADRENAL GLANDS: The adrenal glands are normal.KIDNEYS, URETERS: Too small to accurately characterize focus in the lower pole of the left kidney. No evidence of hydronephrosis. Circumaortic left renal vein is noted.RETROPERITONEUM, LYMPH NODES: No significant abnormality noted.BOWEL, MESENTERY: No evidence of obstruction. No free fluid or pneumoperitoneum.BONES, SOFT TISSUES: The bones are normal in appearance.OTHER: No significant abnormality noted.
Obstructing common bile duct stone at the head of the pancreas with multiple stones present in the distal common bile duct. Mild intra and extrahepatic biliary ductal dilatation.