label: Cutaneous Neurocristic Hamartoma
label_lc: cutaneous neurocristic hamartoma
description: A rare dermal and subcutaneous lesion that results from the aberrant development of neural crest-derived melanocytes.  It affects the head and neck with a predilection for the scalp.  It presents as a slowly enlarging multinodular plaque.  Morphologically is characterized by the presence of melanocytes and structures with schwannian differentiation in the dermis and subcutaneous tissue.