title: Infiltrating periductal neoplasm mimicking biliary dilatation on computed tomography.
abstract: A case is reported in which hypodense linear structures on postcontrast computed tomography were not intrahepatic biliary dilatation but periductal extension of pancreatic carcinoma.
mesh_terms: D000230:Adenocarcinoma / Q000556:secondary; D000368:Aged; D001649:Bile Duct Diseases / Q000000981:diagnostic imaging; D001653:Bile Ducts, Intrahepatic; D003937:Diagnosis, Differential; D004108:Dilatation, Pathologic / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D008113:Liver Neoplasms / Q000000981:diagnostic imaging* / Q000556:secondary; D010190:Pancreatic Neoplasms / Q000473:pathology; D014057:Tomography, X-Ray Computed