A Case of Dysplastic Melanocytic Nevus / 대한피부과학회지

The dysplasitc melanocytic nevus(DMN) of the skin is an atypical-appearing melanocytic tumor characterized by intraepidermal atypical melanocytic preliferation. Clinically, DMN has a diameter greater than 5mm, ill-defined irregular borders, irregularly distributed pigmentation surrounded by erythems,. Histopat- hologically, there are numerous discrete nests of atypical melanocytes situated at the dermoepidermal junction of elongated rete ridges. In the dermis, concentric lamellar fibroplasia, lymphocytic infiltrates and neovascularization are noted. We report herein a case of DMN developed on the trunk of 31-year-old Korean male.