Lichen striatus colocalized with a Spitz nevus.

Abstract

A 7-year-old healthy girl presented with an 11-month history of an asymptomatic red, dome-shaped papule on her right medial elbow and 6-month history of linearly distributed, few millimeter, flesh-colored papules extending from and including the red papule. Histopathology demonstrated features of both a Spitz nevus and a lichen striatus. The Spitz nevus was removed with a punch biopsy and the lichen striatus subsequently resolved. To our knowledge, co-localization of a Spitz nevus with lichen striatus has not been previously reported and highlights the potential association between the immunogenicity of Spitz nevi and the development of lichen striatus.