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Erythema dyschromicum perstans.

W C Lambert, R A Schwartz, G B Hamilton

    Cutis
    |January 1, 1986
    PubMed
    Summary
    This summary is machine-generated.

    Erythema dyschromicum perstans rapidly developed in a patient after oral contrast radiography. Skin biopsy revealed melanin incontinence and lymphatic dilation, suggesting a link between contrast media and this dermatosis.

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    Area of Science:

    • Dermatology
    • Radiology
    • Pathology

    Background:

    • Erythema dyschromicum perstans (EDP) is a rare dermatosis characterized by dyschromic, persistent skin lesions.
    • The etiology of EDP remains largely unknown, with various triggers proposed.
    • This case investigates a potential association between radiocontrast agents and EDP development.

    Observation:

    • A 29-year-old woman presented with sudden, widespread lesions consistent with EDP.
    • The onset followed an X-ray examination utilizing orally administered contrast dye.
    • Systemic evaluation revealed no underlying abnormalities.

    Findings:

    • Skin biopsy demonstrated significant melanin incontinence (pigment leakage) in the epidermis.
    • Marked dilatation of superficial dermal lymphatics was observed.

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  • Epidermal changes were minimal, indicating the primary pathology was pigmentary and vascular.

    • Implications:

    • This case suggests a possible iatrogenic cause for erythema dyschromicum perstans.
    • Oral radiocontrast agents may act as a trigger for EDP in susceptible individuals.
    • Further research is warranted to confirm the link and elucidate the pathogenic mechanisms.