title: Hepatoid adenocarcinoma of the papilla of Vater.
abstract: An adenocarcinoma of the papilla of Vater showing hepatoid differentiation similar to that described for hepatoid adenocarcinoma of the stomach is reported. The tumor was a poorly differentiated adenocarcinoma with clear cells containing occasional hyaline droplets and exhibiting bile secretion. Alpha-fetoprotein (AFP), alpha 1-antitrypsin (alpha 1-AT) and carcino-embryonic antigen (CEA) were demonstrated by immunoperoxidase staining. This appears to be the first report of a hepatoid adenocarcinoma at this location.
authors.affiliation: Department of Pathology, St. Michael's Hospital, Toronto, Ontario, Canada.
authors.forename: G W
authors.initials: GW
authors.lastname: Gardiner
authors.forename: G
authors.initials: G
authors.lastname: Lajoie
authors.forename: R
authors.initials: R
authors.lastname: Keith
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology*; D006528:Carcinoma, Hepatocellular / Q000473:pathology*; D004379:Duodenal Neoplasms / Q000473:pathology*; D005260:Female; D006801:Humans; D008875:Middle Aged