Lichen striatus avec dystrophie unguéale chez un nourrisson

Nail involvement in lichen striatus is uncommon and is frequently associated with typical skin lesions. Thirty cases have been reported in the literature since 1941. None of the subjects affected was younger than 2-years-old. Nail involvement was more frequent on the fingers, especially the thumb. As in the present case, longitudinal ridging, splitting and thinning with onychodystrophy are common clinical features of nail involvement. The diagnosis of lichen striatus is based on the presence of skin lesions and can be confirmed by biopsy.