Snapshot A 66-year-old man comes to his primary care physician concerned about melanoma. He notes that over the past several years, several greasy moles have cropped up on his back. His cousin had died of melanoma and he is scared that these moles are melanomas. On exam, the moles appeared flat, greasy, and dark with a “stuck on” appearance. He is reassured that these are not melanomas and do not have malignancy potential. Introduction Common, benign persistent epidermal proliferations with variable appearances Can mimic malignancies, especially melanoma Genetics login to view 1 more bullet Associated conditions login to view 3 more bullets Epidemiology Rare before 30-years-old One of the most common benign growths Presentation Symptoms login to view 2 more bullets Physical exam login to view 10 more bullets Evaluation If clinically mimicking skin cancer (e.g., with very dark pigmentation suspicious of melanoma) login to view 1 more bullet Differential Melanoma login to view 1 more bullet Visceral malignancy login to view 1 more bullet Treatment Typically not treated unless for cosmetic reasons login to view 2 more bullets Prognosis Prognosis login to view 2 more bullets