title: Plasmablastic lymphoma mimicking carcinomatosis: A case report and review of the literature.
abstract: First identified as a distinct disease entity in HIV-positive patients, plasmablastic lymphoma is a rare aggressive disease which arises predominantly in men and is associated with immunodeficiency of all causes. Although its exact etiology is poorly understood, Epstein-Barr virus infection and MYC gene aberrations have been implicated in its development in both HIV-positive and HIV-negative patients. The disease typically involves extranodal sites with a predilection for the oral cavity but may occur in other locations. Here we present a case of plasmablastic lymphoma diffusely involving the omentum and peritoneal cavity of an immunocompetent woman, clinically mimicking an ovarian carcinomatosis. To the best of our knowledge, this is the first case in which plasmablastic lymphoma has presented as peritoneal lymphomatosis. Diagn. Cytopathol. 2017;45:243-246. © 2016 Wiley Periodicals, Inc.
authors.affiliation: Department of Pathology and Laboratory Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire, 03766.
authors.forename: Andrea M
authors.initials: AM
authors.lastname: Olofson
authors.affiliation: Department of Pathology and Laboratory Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire, 03766.
authors.forename: Eric Y
authors.initials: EY
authors.lastname: Loo
authors.affiliation: Department of Radiology, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire, 03766.
authors.forename: Paul A
authors.initials: PA
authors.lastname: Hill
authors.affiliation: Department of Pathology and Laboratory Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire, 03766.
authors.forename: Xiaoying
authors.initials: X
authors.lastname: Liu
mesh_terms: D002277:Carcinoma / Q000175:diagnosis*; D003937:Diagnosis, Differential; D017809:Fatal Outcome; D006801:Humans; D008875:Middle Aged; D010534:Peritoneal Neoplasms / Q000175:diagnosis*; D000069293:Plasmablastic Lymphoma / Q000175:diagnosis*
keywords: PBL; carcinomatosis; lymphoma; peritoneal; plasmablastic lymphoma