title: Hepatobiliary cystadenoma.
abstract: Hepatobiliary cystadenomas are rare, truly benign cystic epithelial tumors with the potential to become cystadenocarcinoma. The initial symptom is vague, nonspecific abdominal pain, frequently in middle-aged women, but patients may be asymptomatic. Abdominal ultrasonography may be diagnostic. Intracystic fluid, obtained by sonographically guided fine-needle aspiration, may contain elevated levels of carcinoembryonic antigen. Complete resection or enucleation is the treatment of choice. We present the cases of two patients with hepatobiliary cystadenoma.
mesh_terms: D002759:Adenoma, Bile Duct / Q000000981:diagnostic imaging / Q000473:pathology*; D000293:Adolescent; D001650:Bile Duct Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D001653:Bile Ducts, Intrahepatic / Q000000981:diagnostic imaging / Q000473:pathology*; D001707:Biopsy, Needle; D002272:Carcinoembryonic Antigen / Q000032:analysis; D003537:Cystadenoma / Q000000981:diagnostic imaging / Q000473:pathology*; D005260:Female; D006801:Humans; D008875:Middle Aged; D018084:Ultrasonography, Interventional
chemical_list: D002272:Carcinoembryonic Antigen