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Rheumatoid arthritis with systemic necrotizing arteritis.

F Koizumi, M Fukase, K Wakaki

    Acta Pathologica Japonica
    |September 1, 1979
    PubMed
    Summary
    This summary is machine-generated.

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    This autopsy revealed rheumatoid arthritis with systemic necrotizing arteritis, presenting three distinct vascular changes. The RA type arteritis, with nodule-like lesions, suggests a severe form of rheumatoid vasculitis.

    Area of Science:

    • Rheumatology
    • Pathology
    • Immunology

    Background:

    • Rheumatoid arthritis (RA) is a chronic autoimmune disease primarily affecting joints.
    • Systemic involvement, including vasculitis, can occur in severe RA cases.
    • Understanding the histological subtypes of RA-associated vasculitis is crucial for diagnosis and management.

    Observation:

    • An autopsy case of rheumatoid arthritis (RA) demonstrated active polyarthritis, systemic necrotizing arteritis, pleuritis, pericarditis, and rheumatoid nodules.
    • Histological examination revealed three types of vascular changes in the systemic necrotizing arteritis: Granulomatous arteritis (RA type), Fibrinoid arteritis (PN type), and chronic arteritis with endarterial proliferation (Ep type).
    • The RA type arteritis featured mesenchymal cells forming a palisade around medial necrosis and rheumatoid nodule-like lesions within the vessel wall.

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    Findings:

    • Systemic necrotizing arteritis in this RA case exhibited distinct histological patterns.
    • The RA type arteritis, characterized by nodule-like lesions, may represent an advanced manifestation of rheumatoid vasculitis.
    • Distinguishing the PN type arteritis from Kussmaul-Maier periarteritis nodosa can be challenging.

    Implications:

    • This case highlights the diverse histological presentations of vasculitis in rheumatoid arthritis.
    • The findings suggest that RA-type arteritis with nodule-like lesions is a significant indicator of severe systemic RA.
    • Further research into these distinct vasculitic patterns may improve diagnostic accuracy and therapeutic strategies for RA patients.