title: Biliary cystadenocarcinoma: sonographic and cytologic findings.
abstract: Biliary cystadenocarcinoma is a rare hepatic cystic tumor. We report sonographic, CT, and MRI findings in an unusual case in an 87-year-old man. The diagnosis was aided by sonographically guided needle aspiration of the lesion, which revealed elevated levels of carcinoembryonic antigen and CA 19-9 in the cystic fluid.
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001650:Bile Duct Neoplasms / Q000097:blood / Q000000981:diagnostic imaging* / Q000473:pathology*; D014408:Biomarkers, Tumor / Q000097:blood; D002272:Carcinoembryonic Antigen / Q000097:blood; D003536:Cystadenocarcinoma / Q000097:blood / Q000000981:diagnostic imaging* / Q000473:pathology*; D003937:Diagnosis, Differential; D017809:Fatal Outcome; D005500:Follow-Up Studies; D006500:Hepatic Duct, Common / Q000000981:diagnostic imaging / Q000473:pathology; D006801:Humans; D008297:Male; D014463:Ultrasonography