Spontaneous Regression of Large Congenital Melanocytic Nevi, With a Halo Rim in 17 Children With Large Scalp and Trunk Nevi During 45 Years: A Review of the Literature.

. Prior reports on large congenital melanocytic nevi (LCMN) do not provide a clear management approach to physicians to advise parents or patients. Whether the presence of a halo around the nevus can guide management has not been fully explored.