title: Burkitt's lymphoma of the duodenum in a patient with AIDS.
abstract: Non-Hodgkin's lymphoma of B-cell type is the second most common neoplasm after Kaposi's sarcoma, among patients with human immunodeficiency virus infection. Most non-Hodgkin's lymphoma cases that are associated with acquired immunodeficiency syndrome involve extranodal sites, especially the digestive tract and the central nervous system. We report a case of primary lymphoma of the duodenum in a patient with AIDS. Upper gastrointestinal endoscopy revealed pseudopolypoid masses found in the second portion of the duodenum. A complete diagnostic study including histological, immunohistochemical and virological analyses showed high-grade B-cell Burkitt's lymphoma. The Epstein-Barr virus genome was detected in biopsies by immunohistochemical and in situ hybridization.
authors.affiliation: Division of HIV/AIDS disease, F. J. Muñiz Infectious Diseases Hospital, Buenos Aires, Argentina. marcelocorti@fibertel.com.ar
authors.forename: Marcelo
authors.initials: M
authors.lastname: Corti
authors.forename: María Florencia
authors.initials: MF
authors.lastname: Villafañe
authors.forename: Liliana
authors.initials: L
authors.lastname: Souto
authors.forename: Ricardo
authors.initials: R
authors.lastname: Schtirbu
authors.forename: Marina
authors.initials: M
authors.lastname: Narbaitz
authors.forename: Marcela de Dios
authors.initials: Mde D
authors.lastname: Soler
mesh_terms: D002051:Burkitt Lymphoma / Q000175:diagnosis*; D004379:Duodenal Neoplasms / Q000175:diagnosis* / Q000821:virology; D017809:Fatal Outcome; D016679:Genome, Viral; D004854:Herpesvirus 4, Human / Q000235:genetics; D006801:Humans; D017403:In Situ Hybridization; D016483:Lymphoma, AIDS-Related / Q000175:diagnosis* / Q000821:virology; D008297:Male; D008875:Middle Aged