Cutaneous Blue Nevus

**Semantic type:** Neoplastic Process

**Definition:** An intradermal nevus characterized by the presence of benign pigmented dendritic spindle-shaped melanocytes. It most frequently occurs in the skin of the distal upper extremities, followed by the lower extremities, scalp, face, and buttocks. It usually presents as a single blue or blue-black papular lesion that is less than 1cm in diameter. Simple excision is usually curative.

**Synonyms:** - Blue Nevus of Skin - Blue Nevus of the Skin - Blue Skin Nevus - Skin Blue Nevus