The key to diagnosing these common harmless moles, most common on the face, is a long history with very slow or no growth. Hairy nodules are exceedingly likely to be benign, but hairs growing out of a flat lesion do not indicate its harmless. Superficial melanomas and basal cell cancers don’t destroy the hair follicles immediately. Note the comma vessels and hint of brown. A perfectly safe lesion provided there is no history of significant recent change..