title: Case of biliary cystadenocarcinoma with intracystic bleeding.
abstract: Biliary cystadenocarcinomas are rare cystic tumors arising from the biliary epithelium. Symptoms vary and are sometimes absent. Most lesions are found incidentally during diagnostic radiologic procedures or surgical exploration for unrelated conditions. We describe an 80-year-old man with anemia due to intracystic bleeding. A computed tomographic scan showed a low-density hepatic lesion with thick, irregular walls and septa. Left lobectomy with cholecystectomy was performed. Histological examination revealed that the surgical specimen was a biliary cystadenocarcinoma. The concentrations of both carcinoembryonic antigen and CA19-9 were high in the cyst contents. The patient died of pneumonia 1 year 4 months after the operation, without the recurrence of cystadenocarcinoma.
authors.affiliation: Surgery for Organ Function and Biological Regulation, Graduate School of Medicine, Nippon Medical School, Bunkyo-ku, Tokyo, Japan. ayatani@nms.ac.jp
authors.forename: Aya
authors.initials: A
authors.lastname: Tani
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Yoshida
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Mamada
authors.forename: Nobuhiko
authors.initials: N
authors.lastname: Taniai
authors.forename: Zenya
authors.initials: Z
authors.lastname: Naito
authors.forename: Takashi
authors.initials: T
authors.lastname: Tajiri
mesh_terms: D000369:Aged, 80 and over; D000740:Anemia / Q000209:etiology; D001661:Biliary Tract Neoplasms / Q000150:complications* / Q000175:diagnosis / Q000473:pathology / Q000601:surgery; D002763:Cholecystectomy; D003536:Cystadenocarcinoma / Q000150:complications* / Q000175:diagnosis / Q000473:pathology / Q000601:surgery; D003560:Cysts / Q000209:etiology / Q000601:surgery; D003952:Diagnostic Imaging; D006470:Hemorrhage / Q000209:etiology* / Q000601:surgery; D006498:Hepatectomy; D006801:Humans; D008107:Liver Diseases / Q000209:etiology / Q000601:surgery; D008297:Male