An oral melanotic macule is a harmless dark spot found on the lip, most often the lower lip, or inside the mouth, either on the gums, inside the cheek, or on the roof of the mouth. An oral melanotic Labial melanotic macule Labial melanotic macule. B). Increased numbers of me lanocytes along Download Scientific Diagram Lingual melanotic macule the first case report in an adult patient* Anais Brasileiros de Dermatologia Pigmented Oral Lesions: Clues to Identifying the Potentially Malignant Consultant360