title: Progressive multifocal leukoencephalopathy.
abstract: PML is a progressive opportunistic infection of the CNS caused by a commonly occurring virus that may become manifest in the context of reduced host resistance in persons of any age. The authors review the disease and its causes, including a discussion of treatment attempts and differential diagnoses.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000914:Antibodies, Viral / Q000032:analysis; D001706:Biopsy; D001921:Brain / Q000473:pathology; D002648:Child; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007968:Leukoencephalopathy, Progressive Multifocal / Q000175:diagnosis* / Q000276:immunology / Q000473:pathology; D008297:Male; D008875:Middle Aged; D011379:Prognosis
chemical_list: D000914:Antibodies, Viral