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Giant cell arteritis in two brothers.

J A Mathewson, G G Hunder

    The Journal of Rheumatology
    |February 1, 1986
    PubMed
    Summary
    This summary is machine-generated.

    Giant cell arteritis (GCA) occurred in two brothers simultaneously. HLA-DR4 tissue antigen positivity suggests both genetic and environmental factors contribute to GCA development.

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    Area of Science:

    • Rheumatology
    • Immunogenetics

    Background:

    • Giant cell arteritis (GCA) is a systemic vasculitis primarily affecting large arteries.
    • The etiology of GCA remains incompletely understood, with potential genetic and environmental influences.

    Observation:

    • Two brothers presented with nearly simultaneous onset of giant cell arteritis.
    • Both affected brothers were positive for the HLA-DR4 tissue antigen.

    Findings:

    • The simultaneous occurrence of GCA in closely related individuals suggests a potential genetic predisposition.
    • HLA-DR4 positivity in both brothers aligns with known associations between this antigen and GCA.

    Implications:

    • This case highlights the potential role of genetic factors, specifically HLA-DR4, in the pathogenesis of giant cell arteritis.

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  • Further research into the interplay of genetic susceptibility and environmental triggers is warranted to elucidate GCA development.