Background. We report a case of acquired progressive kinking hair, a rare p
ilar dysplasia. This is the first case induced by sodium valproate.
Case report. A 6-year-old girl, treated with valproate, observed a progress
ive change in the texture of her hair. They were kinky, lusterless, dry and
, under light microscopy, exhibited an aspect of pseudo-pill torti.
Discussion. This child had acquired progressive kinking hair syndrome most
likely induced by valproate. Five other cases of valproate-induced pilar dy
splasia have been reported but without clinical descriptions.
Conclusion. We propose adding sodium valproate to the list of drugs suscept
ible of inducing kinky hair syndrome.