title: Lymphomas-Part 2.
abstract: There are 2 types of central nervous system lymphoma: primary and secondary. Both have variable imaging features making them diagnostic challenges. Furthermore, a patient's immune status significantly alters the imaging findings. Familiarity with typical appearances, variations, and common mimics aids radiologists in appropriately considering lymphoma in the differential diagnosis. Moreover, special types of lymphoma, such as lymphomatosis cerebri, intravascular lymphoma, and lymphomatoid granulomatosis, also are found. This article discusses uncommon types of lymphoma and the differential diagnosis for focal, multifocal, meningeal, and infiltrative lymphomas.
authors.affiliation: Radiologic Department, Clínica Felippe Mattoso, Fleury Medicina Diagnóstica, Avenida das Américas 700, sala 320, Barra Da Tijuca, Rio De Janeiro, Rio De Janeiro CEP 22640-100, Brazil; Radiologic Department, Clínica IRM- Ressonância Magnética, Rua Capitão Salomão, Humaitá, Rio De Janeiro, Rio De Janeiro CEP 22271-040, Brazil. Electronic address: larabrandao.rad@terra.com.br.
authors.forename: Lara A
authors.initials: LA
authors.lastname: Brandão
authors.affiliation: Division of Neuroradiology, Department of Radiology, University of North Carolina, School of Medicine, Room 3326, Old Infirmary Building, Manning Drive, Chapel Hill, NC 27599-7510, USA.
authors.forename: Mauricio
authors.initials: M
authors.lastname: Castillo
mesh_terms: D001921:Brain / Q000000981:diagnostic imaging; D001932:Brain Neoplasms / Q000000981:diagnostic imaging*; D006801:Humans; D008223:Lymphoma / Q000000981:diagnostic imaging*; D009682:Magnetic Resonance Spectroscopy; D059906:Neuroimaging / Q000379:methods*
keywords: Intravascular lymphoma; Lymphomatoid granulomatosis; Lymphomatosis cerebri