Linear porokeratosis in a 13-year-old girl.

Porokeratosis is a rare, acquired or inherited disorder of keratinization characterized by one or more atrophic macules or patches, each surrounded by a characteristic ridge-like hyperkeratotic border. Linear porokeratosis (LP) is a variant of porokeratosis in which the lesions are distributed in a linear way. The skin lesions of linear porokeratosis typically present in infancy or early childhood. However, sometimes they occur in adults. The current work talks about a 13-year-old girl suffering from linear porokeratosis since the age of 2 months. [ABSTRACT FROM AUTHOR]