title: Case records of the Massachusetts General Hospital. Weekly clinicopathological exercises. Case 19-1972.
mesh_terms: D001344:Autopsy; D001921:Brain / Q000382:microbiology / Q000473:pathology; D003711:Demyelinating Diseases / Q000473:pathology*; D003937:Diagnosis, Differential; D006801:Humans; D007945:Leukemia, Lymphoid / Q000175:diagnosis / Q000473:pathology*; D007968:Leukoencephalopathy, Progressive Multifocal / Q000175:diagnosis / Q000382:microbiology / Q000473:pathology; D008297:Male; D008875:Middle Aged; D014391:Tuberculosis, Miliary / Q000473:pathology; D014397:Tuberculosis, Pulmonary / Q000175:diagnosis / Q000473:pathology; D014780:Viruses / Q000302:isolation & purification