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January 1984

Contact Exposure to Elemental Iron Causing Chromonychia

Author Affiliations

From the Department of Dermatology, Yale University School of Medicine, New Haven, Conn.

Arch Dermatol. 1984;120(1):102-103. doi:10.1001/archderm.1984.01650370108021

• An orange-brown chromonychia developed on the toenails of a woman after a geographic move resulted in exposure to rural well water. Samples of the water and qualitative and quantitative examination of nail clippings confirmed the fact that the source for the discoloration was contact exposure to elemental iron. Installation of water purification equipment resulted in resolution of the nail stain over a six-week period of time.

(Arch Dermatol 1984;120:102-103)

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