Pigmented Spindle Cell Nevus Watchlist (log in to enable) Retrieved 2021-01-18 Source Wikipedia Trials — Genes ETV6, MYO5A, NTRK3 Drugs — Interested in hearing about new therapies? Registered! A pigmented spindle cell nevus is a skin condition characterized by a dark brown to black macule or papule, usually less than 6 mm. It was characterized in 1975. See also Partial unilateral lentiginosis List of cutaneous conditions Spitz nevus