Common oral mucosal lesions Den norske tannlegeforenings Tidende 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 Lentigo (labial melanotic macule) Cancer Therapy Advisor Oral Malignant Melanoma Oral Cancer Foundation Information and Resources about Oral Head and Neck Cancer Oral Cancer Small Black Dot Inside Mouth Cheek: Alarming Liv Hospital Differential Diagnosis of Pigmented Lesions in the Oral Mucosa: A Clinical Based Overview and Narrative Review