title: Imaging manifestations of progressive multifocal leukoencephalopathy.
abstract: Progressive multifocal leukoencephalopathy (PML) is a demyelinating disease caused by reactivation of JC virus in immunosuppressed patients. The diagnosis is usually suggested on imaging and confirmed by cerebrospinal fluid polymerase chain reaction (PCR) for JC virus DNA. In this article, we review the imaging manifestations of PML on computed tomography (CT), magnetic resonance imaging (MRI), diffusion-weighted imaging (DWI), diffusion tensor imaging (DTI), MR spectroscopy, single photon-emission computed tomography (SPECT) and positron-emission tomography (PET), and outline the role of imaging in follow-up and prognostication.
authors.affiliation: Division of Neuroradiology, Department of Diagnostic Radiology, University of Alabama at Birmingham, Birmingham, Alabama, USA.
authors.forename: R
authors.initials: R
authors.lastname: Shah
authors.forename: A K
authors.initials: AK
authors.lastname: Bag
authors.forename: P R
authors.initials: PR
authors.lastname: Chapman
authors.forename: J K
authors.initials: JK
authors.lastname: Curé
mesh_terms: D038524:Diffusion Magnetic Resonance Imaging / Q000379:methods; D056324:Diffusion Tensor Imaging / Q000379:methods; D006801:Humans; D016867:Immunocompromised Host; D007968:Leukoencephalopathy, Progressive Multifocal / Q000175:diagnosis*; D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D049268:Positron-Emission Tomography / Q000379:methods; D011379:Prognosis; D015899:Tomography, Emission-Computed, Single-Photon / Q000379:methods; D014481:United States