PT 141 Melanotic Macules, Naevi, and Melanoma Springer Nature Link 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 Figure 2 from Oral melanotic macule a case report. Semantic Scholar Figure 225 from Pigmentations of the Oral Mucosa and Facial Skin Semantic Scholar