Labial melanotic macule Pigmented Lesions of the Oral Cavity Oral and Maxillofacial Surgery Clinics A and B) Clinical appearance of a melanotic mandibular gingival lesion Download Scientific Diagram Mucosal melanocytic macules 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 What Caused These Multiple Hyperpigmented Macules of the Mouth?