title: Extranodal lymphoplasmacytoid lymphoma: spectrum of disease.
abstract: Lymphoplasmacytoid lymphomas (LPL) are non-Hodgkin's lymphomas characterized by a proliferation of lymphoplasmacytoid cells or plasma cells with intracytoplasmic monoclonal Ig. The LPL are low-grade B-cell neoplasms close to B chronic lymphocytic leukemia with plasmacytoid differentiation. They show an indolent course, typically affect older men, and present as a disseminated disease with predominantly nodal involvement. Nevertheless, localized forms, some of them extranodal, have been described. The cases that best represent the range of radiographic findings on X-ray, CT, and MR imaging are presented.
authors.affiliation: Department of Radiology, University of California at San Francisco, 350 Parnassus Avenue, Suite 150, San Francisco, CA 94117, USA. ali.guermazi@oarg.ucsf.edu
authors.forename: Ali
authors.initials: A
authors.lastname: Guermazi
authors.forename: Véronique
authors.initials: V
authors.lastname: Meignin
authors.forename: Pauline
authors.initials: P
authors.lastname: Brice
mesh_terms: D000328:Adult; D000368:Aged; D016543:Central Nervous System Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging; D004067:Digestive System Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging; D005260:Female; D006258:Head and Neck Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging; D006801:Humans; D015451:Leukemia, Lymphocytic, Chronic, B-Cell / Q000175:diagnosis / Q000000981:diagnostic imaging*; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D013899:Thoracic Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed; D014565:Urogenital Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging