title: Progressive multifocal leukoencephalopathy in chronic lymphatic leukaemia--caused by polyoma virus?
mesh_terms: D000368:Aged; D001344:Autopsy; D001766:Blindness / Q000150:complications; D001921:Brain / Q000473:pathology*; D004660:Encephalitis / Q000150:complications* / Q000473:pathology; D006801:Humans; D007945:Leukemia, Lymphoid / Q000150:complications*; D008297:Male; D008854:Microscopy, Electron; D010291:Paresis / Q000150:complications; D011120:Polyomavirus / Q000472:pathogenicity*; D013116:Spinal Cord / Q000473:pathology*