Freckle on Lip: Meaning, Causes and Is It Dangerous? (Labial Melanotic Macule) La Bouche Parfaite Oral pigmented lesions: Clinicopathologic features and review of the literature In the process of removing a Labial Melanotic Macule. A Labial Melanotic Macule is a well defined, oval, brown to black, flat patch on the central third of the lower lip, as seen Melanotic macules of the tongue in a newborn Journal of the American Academy of Dermatology