label: Proliferative Nodules in Congenital Melanocytic Nevus
label_lc: proliferative nodules in congenital melanocytic nevus
description: "A benign proliferation of epithelioid or spindled melanocytes usually in the upper or mid dermis in a background of congenital melanocytic nevus. The congenital melanocytic nevus is usually of the deep type, involving the dermis and extending into the subcutaneous tissue. It presents as a dark plaque or nodule above a giant congenital melanocytic nevus."