Moles (Melanocytic Nevi) By Denise M Aaron, MD, Dartmouth Geisel School of Medicine Reviewed / Revised Jan 2022 | Modified Sep 2022 View Patient Education Diagnosis Treatment Key Points Topic Resources Mole Junctional Nevi Compound Nevus Intradermal Nevus Halo Nevus Blue Nevus Classification of Moles Moles are flesh - to brown-colored macules, papules, or nodules composed of nests of melanocytes or nevus cells.