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Article
August 1980

Occupational Koilonychia

Author Affiliations

Columbus, Ohio

Arch Dermatol. 1980;116(8):861. doi:10.1001/archderm.1980.01640320011002
Abstract

To the Editor.—  Koilonychia has been reported in conjunction with various causative factors and disease associations. It is most commonly seen in iron deficiency anemia and peripheral ischemic vascular disease. However, there have also been several reports of occupationally induced koilonychia. We wish to report another case of traumatic koilonychia in conjunction with the occupation of coil winding.

Report of a Case.—  A 45-year-old woman was initially seen with a six-month history of progressive deformity of the nails (Figure) of the first three digits of her right hand. She used these three digits (in her occupation as a coil winder) to put firm pressure on the wire as it was being coiled. She was otherwise in good health, and her family history was unremarkable. Examination showed pronounced spoon-like depressions and slight onycholysis of the first three digits of her right hand; all other nails were completely normal. The patient has

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