Leukonychia striae.
A 19-year-old keypuncher had leukonychia striae. The pattern of striae suggested that they occurred as a result of the mechanical stimulation of keypunching.
D000328:Adult; D005260:Female; D006801:Humans; D009262:Nails / Q000473:pathology*; D009784:Occupational Diseases / Q000473:pathology*; D012871:Skin Diseases / Q000473:pathology*