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  • Title: Neuropathology of acquired immunodeficiency syndrome (AIDS): an autopsy review.
    Author: Petito CK, Cho ES, Lemann W, Navia BA, Price RW.
    Journal: J Neuropathol Exp Neurol; 1986 Nov; 45(6):635-46. PubMed ID: 3021914.
    Abstract:
    In the brains and spinal cords of 153 adult patients dying with acquired immunodeficiency syndrome (AIDS) at New York and Memorial Hospitals a subacute encephalitis with multinucleated cells was present in 28% of all patients. This encephalitis was characterized by multinucleated cells primarily located in the white matter and associated with myelin pallor and sparse infiltrates of rod cells, macrophages, gemistocytic astrocytes and lymphocytes. The incidence per 12 month period ranged from 0 to 43% and significantly increased between 1983-84 (14%) and 1984-85 (43%). Recent virologic and pathologic studies suggest that this encephalitis may be caused by direct LAV/HTLV-III infection of the central nervous system (CNS). Cytomegalovirus encephalomyelitis and toxoplasmosis were the most common opportunistic infections (26% and 10%, respectively). Progressive multifocal leukoencephalopathy, herpes simplex ventriculitis, varicella-zoster leukoencephalitis and fungal infections were infrequent (less than 3% each). A nonspecific encephalitis with microglial nodules and with mild white matter changes occurred in 17%, vacuolar myelopathy in 29% and CNS lymphoma in 6%. Less than 20% of patients had either normal brains or terminal metabolic encephalopathies. This survey shows that neuropathologic complications of AIDS are frequent. Infections are the most common complication and are caused by probable LAV/HTLV-III infection, or by opportunistic organisms.
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