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[Puvatherapy and systemic lupus erythematosus].

C A Bianchi, R Milicich, O Stringa

    Medicina Cutanea Ibero-Latino-Americana
    |January 1, 1983
    PubMed
    Summary
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    Psoralen plus ultraviolet A (PUVA) therapy can trigger autoimmune hemolytic anemia and lupus-like symptoms. Careful clinical and serological monitoring is crucial to manage potential iatrogenic risks associated with PUVA treatment.

    Area of Science:

    • Dermatology
    • Immunology
    • Internal Medicine

    Background:

    • Psoralen plus ultraviolet A (PUVA) therapy is a common phototherapy for skin conditions.
    • Photosensitivity reactions can manifest in various ways, including autoimmune phenomena.
    • Previous reports have linked PUVA therapy to lupus erythematosus-like syndromes.

    Observation:

    • A patient developed autoimmune hemolytic anemia, fever, and polyarthralgias post-PUVA therapy.
    • Laboratory findings included accelerated ESR, complement consumption, low C4 and C3 levels, and high ANA titers.

    Findings:

    • The observed symptoms suggest a potential link between PUVA therapy and the induction of autoimmune responses.
    • Long-wave ultraviolet light exposure may act as a precipitating factor for autoimmune phenomena.

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  • A discrepancy exists regarding whether PUVA-induced alterations are antigenic, requiring further clarification.

    • Implications:

    • This case highlights the iatrogenic risk of PUVA therapy in potentially triggering autoimmune conditions.
    • Close clinical and serological monitoring is essential for patients undergoing PUVA treatment.
    • Further research is needed to elucidate the exact mechanisms and resolve conflicting findings regarding PUVA's role in autoimmunity.