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Central nervous system pathology in pediatric AIDS: an autopsy study
D W Dickson1, A L Belman, Y D Park
1Department of Pathology, Albert Einstein College of Medicine, Bronx, N.Y. 10461.
APMIS. Supplementum
|January 1, 1989
Summary
Neuropathologic findings in children with AIDS reveal common vascular calcification and subacute encephalitis. HIV was detected in encephalitis cases, with multinucleated giant cells being prominent.
Area of Science:
- Neuropathology
- Pediatric Neurology
- Infectious Diseases
Background:
- Acquired Immunodeficiency Syndrome (AIDS) in children can lead to significant central nervous system (CNS) complications.
- Understanding the neuropathologic spectrum of pediatric AIDS is crucial for diagnosis and management.
Purpose of the Study:
- To describe the neuropathologic findings in the brains and spinal cords of infants and children with AIDS.
- To investigate the presence and localization of Human Immunodeficiency Virus (HIV) in CNS lesions.
Main Methods:
- Autopsy examination of brains and spinal cords from 26 pediatric AIDS cases.
- Histopathological analysis including immunocytochemistry and in situ hybridization for HIV.
- Characterization of cellular markers (RCA, LCA, GFAP) in specific lesions.
Main Results:
- Dystrophic calcification of blood vessels (21/24 cases) and subacute encephalitis (SE) (15/24 cases) were the most frequent brain findings.
- HIV antigen/sequences were detected only in cases with SE, primarily within multinucleated giant cells (MGCs).
- Corticospinal tract degeneration (15/20 spinal cords) and CNS lymphoma (3 cases) were also observed.
Conclusions:
- Pediatric AIDS neuropathology is characterized by vascular calcification and SE, with HIV localized to SE lesions.
- Multinucleated giant cells in SE show specific lectin binding patterns.
- Other significant findings include tract degeneration and CNS lymphoma, highlighting the diverse neurological impact of pediatric AIDS.