91-year-old male with acute acalculus cholecystitis ABDOMEN:LIVER, BILIARY TRACT: The common bile duct is dilated measuring up to 8 mm with abrupt transition and convex contour of the filling defect at the distal common bile duct just proximal to the ampulla. There is mild intrahepatic biliary ductal dilatation. No gallstones are present within the gallbladder. There is fluid signal surrounding the gallbladder without significant gallbladder wall thickening. Trace perihepatic ascites.SPLEEN: No significant abnormality noted. Trace perisplenic ascites.PANCREAS: The pancreas demonstrates restricted diffusion and surrounding fat stranding. The main pancreatic duct is dilated measuring 7 mm with abrupt cut off at the pancreatic head near the ampulla. There is a 12 mm T2 hyperintense cystic lesion in the uncinate process that may represent a sidebranch IPMN.ADRENAL GLANDS: No significant abnormality noted.KIDNEYS, URETERS: Multiple T2 hyperintense simple cysts are noted bilaterally. No hydronephrosis or perinephric inflammation.RETROPERITONEUM, LYMPH NODES: No significant abnormality noted.BOWEL, MESENTERY: Colonic diverticulosis. BONES, SOFT TISSUES: Survey images demonstrate compression deformity of the L2 vertebral body and grade 1 anterolisthesis of L4 on L5, similar to the prior CT.Status post median sternotomy.OTHER: Multiple bilateral bladder diverticula are present. Small right pleural effusion.
1.Nonopacification of the CBD with relatively abrupt transition at the distal CBD with upstream new biliary dilation compatible with a small CBD stone.2.Findings compatible with mild pancreatitis. 3.Additional findings as above.