Pityriasis lichenoides chronica: onset at birth.

摘要

Pityriasis lichenoides is an uncommon idiopathic dermatosis, which has been divided in two forms, acute (pityriasis lichenoides et varioliformis acuta, PLEVA) and chronic (pityriasis lichenoides chronica, PLC) variants, on the basis of morphology, histopathology, and the course of skin lesions.A 5-month-old male infant presented with a history of reddish-brown papules with adherent scales since birth. These papules first appeared on his left thigh, and over time similar lesions appeared in crops over his trunk and upper and lower extremities. The parents reported a