Successful Treatment of Idiopathic Onychodystrophy With 300 Microsecond 1064 nm Nd:YAG Laser.

Onychodystrophy is the temporary or permanent change in the nail structures. It can be secondary to an inflammatory condition or infectious disease, however many cases of onychodystrophy are idiopathic in nature. In secondary onychodystrophy the treatment is directed towards the underlying process, with subsequent improvement in the appearance of the affected nails depending on the etiology. Dystrophy secondary to onychomycosis is particularly difficult to treat. In permanent idiopathic nail dystrophy, treatment is often unsatisfactory. Destructive nail changes are not only cosmetically displeasing, but also at times physically painful and socially embarrassing. The literature on the treatment of purely idiopathic nail dystrophy is extremely scarce. To our knowledge there exists only one report of two cases of idiopathic onychodystrophy successfully treated with fractional carbon dioxide laser and topical corticosteroids. In this report, we present the first cases of idiopathic onychodystrophy successfully treated with a 1064 nm neodymium-doped yttrium aluminum garnet laser.