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Related Experiment Videos

Contact exposure to elemental iron causing chromonychia.

T G Olsen, P Jatlow

    Archives of Dermatology
    |January 1, 1984
    PubMed
    Summary

    Elemental iron in rural well water caused orange-brown toenail discoloration (chromonychia) in a woman. Water purification resolved the nail staining within six weeks.

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    Area of Science:

    • Dermatology
    • Environmental Health

    Background:

    • Nail discoloration can arise from various exogenous and endogenous factors.
    • Exposure to environmental elements is a potential cause of dermatological changes.

    Observation:

    • A woman presented with orange-brown discoloration of her toenails after relocating to a rural area.
    • The discoloration coincided with exposure to untreated well water.

    Findings:

    • Analysis confirmed elemental iron in the well water as the causative agent for the chromonychia.
    • Nail clippings showed evidence consistent with exogenous iron deposition.

    Implications:

    • This case highlights elemental iron in water as an uncommon but identifiable cause of nail discoloration.
    • Environmental exposure assessment is crucial in diagnosing unusual dermatological conditions.
    • Water filtration systems can effectively remediate iron-induced nail staining.

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