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Related Experiment Videos

Gas plant (Dictamnus albus) phytophotodermatitis simulating poison ivy.

J A Henderson, J P DesGroseilliers

    Canadian Medical Association Journal
    |April 1, 1984
    PubMed
    Summary

    A man developed a recurring itchy rash on his arm each summer. The cause was identified as gas plant phytophotodermatitis from Dictamnus albus exposure and sunlight.

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    Area of Science:

    • Dermatology
    • Botany
    • Toxicology

    Background:

    • Recurrent summer rash on the forearm.
    • Initial misdiagnosis as poison ivy dermatitis.
    • Absence of known allergens in the patient's garden.

    Observation:

    • Patient presented with an itchy rash mimicking burns.
    • Lesions appeared annually on the left forearm during summer.
    • Discovery of Gas Plant (Dictamnus albus) in the garden.

    Findings:

    • Occlusive patch testing with Dictamnus albus leaf cuttings.
    • Positive reaction upon subsequent sun exposure.
    • Diagnosis of Gas Plant phytophotodermatitis.

    Implications:

    • Highlights Dictamnus albus as a cause of phytophotodermatitis.
    • Importance of accurate plant identification in diagnosing dermatitis.
    • Educating patients on potential phototoxic plant reactions.

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