Mystery behind labial and oral melanotic macules: Clinical, dermoscopic and pathological aspects of Laugier Hunziker syndrome 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 Figure 9 from Pigmented lesions of the oral cavity: review, differential diagnosis, and case presentations. Semantic Scholar Labial melanotic macule What Caused These Multiple Hyperpigmented Macules of the Mouth? a Melanotic macule at the wetdry line of the lower lip. b Melanotic Download Scientific Diagram