Oral Melanotic Macule: Symptoms and Treatment Skinsight oral melanotic macule Search Science Photo Library 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 AC) Schematic representations of dermoscopic patterns in patient with Download Scientific Diagram Labial Macules: Dark Spots on the Lip Dermatology Advisor