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September 1974

Nail Damage Caused by Weed Killers and Insecticides

Arch Dermatol. 1974;110(3):467. doi:10.1001/archderm.1974.01630090093038

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To the Editor.—  The onychopathy described here, first noted by Samman and Johnston in 1969,1 is not common but very characteristic.On Feb 15, 1972, a 65-year-old white man used a phytosanitary product (Winter Volck Yellow, Sopra) for the treatment of fruit trees. He neglected the recommendation on the label and instead of mixing 1 liter of the product with 50 liters of water, he handled the chemical in a pure state for three hours.After 15 days, he noticed some change in the color of his nails. Two months later, the nails appeared to be made up of two portions: the proximal third of the nail plate was yellow and the distal two thirds was pink. The cuticle was absent and there was a slight painless paronychia (Figure). Seven months later, edema of the proximal nail fold had not completelyAppearance of nails after two months. disappeared. A

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