title: Primary follicular lymphoma arising in the ampulla of Vater.
abstract: Primary gastrointestinal lymphomas constitute more than one-third of all extranodal lymphomas, but among them follicular lymphomas (FL) are infrequent, accounting for only 1-4%. We report the case of a 55-year-old man diagnosed with a FL of the ampulla of Vater. He complained of dyspepsia. An upper gastroendoscopic study 1 year before showed a slight enlargement of the papilla with the biopsy initially interpreted as atypical follicular hyperplasia. The study performed because of persistence of the symptoms again showed an enlarged papilla, and the histological examination was diagnostic of FL (CD10+, bcl-2+). The full staging study did not show other FL involvement. The patient was treated with six courses of cyclophosphamide, hydroxydaunomycin, vincristine, and prednisone (CHOP), and the endoscopy as well as the biopsies revealed no abnormalities since the third course of chemotherapy. After 2 years of follow-up he remains asymptomatic and the gastroendoscopic study is normal.
authors.affiliation: Institute of Hematology and Oncology, Hematology Department, IDIBAPS, Hospital Clínic, Villarroel 170, 08036 Barcelona, Spain. alopezg@clinic.ub.es
authors.forename: E
authors.initials: E
authors.lastname: Nadal
authors.forename: A
authors.initials: A
authors.lastname: Martinez
authors.forename: M
authors.initials: M
authors.lastname: Jiménez
authors.forename: A
authors.initials: A
authors.lastname: Ginés
authors.forename: E
authors.initials: E
authors.lastname: Campo
authors.forename: J
authors.initials: J
authors.lastname: Piqué
authors.forename: A
authors.initials: A
authors.lastname: López-Guillermo
mesh_terms: D014670:Ampulla of Vater / Q000473:pathology*; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000008:administration & dosage; D003138:Common Bile Duct Neoplasms / Q000175:diagnosis / Q000188:drug therapy / Q000473:pathology*; D018572:Disease-Free Survival; D016099:Endoscopy, Gastrointestinal; D006801:Humans; D008224:Lymphoma, Follicular / Q000175:diagnosis / Q000188:drug therapy / Q000473:pathology*; D008297:Male; D008875:Middle Aged