title: Progressive multifocal leukoencephalopathy.
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000150:complications; D000328:Adult; D006801:Humans; D007968:Leukoencephalopathy, Progressive Multifocal / Q000000981:diagnostic imaging / Q000209:etiology / Q000473:pathology*; D008297:Male; D011859:Radiography