Unilateral pityriasis rosea in a child: A rare clinical presentation

摘要

Pityriasis rosea is a common papulosquamous disorder with occasional variations in lesion morphology, distribution, number and course of disease. The lesions are classically arranged with their long axes parallel to the Langer's lines of cleavage and typically affect the trunk and the proximal extremities. Variations in the distribution of pityriasis rosea include inversus, localized, and unilateral forms. The unilateral form is a very rare variant of pityriasis rosea, particularly in children. We report a 15-year-old boy with pityriasis rosea demonstrating unilateral localization.