title: [Villous adenoma of the Vater's ampulla].
abstract: Benign tumors of the ampulla of Vater are rare. The villous adenoma, the most common benign tumor of this region, has a high tendency to malignant transformation. Postmortem studies showed an incidence of 0.04-0.12% adenomatous lesions of the papilla of Vater. The authors present a case of villous adenoma of the ampulla of Vater and make a review of the literature.
authors.affiliation: Disciplina de Cirurgia Geral, Hospital Universitário, Universidade Federal do Maranhão.
authors.forename: H O
authors.initials: HO
authors.lastname: Serra
authors.forename: O M
authors.initials: OM
authors.lastname: Costa
authors.forename: A
authors.initials: A
authors.lastname: Alves Júnior
authors.forename: M J
authors.initials: MJ
authors.lastname: Couto
authors.forename: A R
authors.initials: AR
authors.lastname: Silva
mesh_terms: D018253:Adenoma, Villous / Q000175:diagnosis / Q000601:surgery; D014670:Ampulla of Vater / Q000473:pathology / Q000601:surgery; D003138:Common Bile Duct Neoplasms / Q000175:diagnosis / Q000601:surgery; D005260:Female; D006801:Humans; D008875:Middle Aged