[Sodium valproate-induced kinky hair].
BACKGROUND: We report a case of acquired progressive kinking hair, a rare pilar dysplasia. This is the first case induced by sodium valproate. CASE REPORT: A 6-year-old girl, treated with valproate, observed a progressive change in the texture of her hair. They were kinky, lusterless, dry and, under light microscopy, exhibited an aspect of pseudo-pili torti. DISCUSSION: This child had acquired progressive kinking hair syndrome most likely induced by valproate. Five other cases of valproate-induced pilar dysplasia have been reported but without clinical descriptions. CONCLUSION: We propose adding sodium valproate to the list of drugs susceptible of inducing kinky hair syndrome.