Reason: cause of abd pain, back pain, lipase with dilated common bile duct on abd us? History: abd pain, back pain, lipase with dilated common bile duct on abd us ABDOMEN:LIVER, BILIARY TRACT: Common bile duct is mildly prominent measuring 9 mm, with smooth tapering of the distal common bile duct, likely representing stenosis. Mild intrahepatic biliary ductal dilatation. Status post cholecystectomy.SPLEEN: Wedge-shaped region of low T2 signal within the kidney with scarring may represent an old infarct.PANCREAS: Increased T2 signal and diffusion restriction in the pancreatic head may reflect mild acute pancreatitis.Mildly prominent main pancreatic duct measuring 3 mm with mild atrophy of the pancreatic tail. A cystic lesion within the pancreatic head measures 1.0 x 0.8 cm (501/16), likely a side branch IPMN.Additional smaller lesions are present in the pancreatic tail (501/23) comma also likely sidebranch IPMNs.ADRENAL GLANDS: No significant abnormality noted.KIDNEYS, URETERS: Bilateral atrophic kidneys. Subcentimeter T2 hyperintensities, likely cysts.RETROPERITONEUM, LYMPH NODES: No significant abnormality noted.BOWEL, MESENTERY: No significant abnormality noted.BONES, SOFT TISSUES: No significant abnormality noted.OTHER: Right lower pulmonary opacity.
1.Mild intrahepatic and extrahepatic biliary ductal dilatation with narrowing of the distal common bile duct, likely reflecting stenosis from external compression.2.Mild pancreatitis of the pancreatic head3.Cystic lesion in the pancreatic head likely represents a side branch IPMN.4.Wedge-shaped abnormal signal in the spleen may represent an old infarct.