RT Journal A1 Baran RL T1 NAil damage caused by weed killers and insecticides JF Archives of Dermatology JO Archives of Dermatology YR 1974 FD September 1 VO 110 IS 3 SP 467 OP 467 DO 10.1001/archderm.1974.01630090093038 UL http://dx.doi.org/10.1001/archderm.1974.01630090093038 AB 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