title: A case of ampullary follicular lymphoma.
authors.affiliation: Division of Gastroenterology, Mayo Clinic, Jacksonville, Florida, USA.
authors.forename: Lady Katherine
authors.initials: LK
authors.lastname: Mejía
authors.affiliation: Department of Laboratory Medicine and Pathology, Mayo Clinic, Jacksonville, Florida, USA.
authors.forename: Liuyan
authors.initials: L
authors.lastname: Jiang
authors.affiliation: Division of Gastroenterology, Mayo Clinic, Jacksonville, Florida, USA.
authors.forename: Victoria
authors.initials: V
authors.lastname: Gómez
mesh_terms: D000368:Aged; D014670:Ampulla of Vater; D004379:Duodenal Neoplasms / Q000000981:diagnostic imaging* / Q000188:drug therapy / Q000473:pathology; D004384:Duodenoscopy; D006801:Humans; D008224:Lymphoma, Follicular / Q000000981:diagnostic imaging* / Q000188:drug therapy / Q000473:pathology; D008297:Male