Pigmentary Regression in a Giant Nevocellular Nevus: A Case Report and a Review of the Subject

Abstract
A giant congenital nevocytic nevus (CNN) on the trunk was followed in a patient from age three months to 23-years-old. During that time the nevus underwent pigmentary regression leaving 2-3 mm lentigines without any evidence of vitiligo or halo formation around the giant CNN. Histopathologically, nevus cells remained in the dermis.