Laser Lip Treatment for Lip Discoloration: Patient Transformation Pigmented Oral Lesions: Clues to Identifying the Potentially Malignant Consultant360 Understanding Lip Spot Causes and Treatments Mucosal melanocytic macules Simple cryosurgical treatment of the oral melanotic macule Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontics Melanotic macule. Benign. Dark spot on labia (or lip). Analogous to lentigo simplex. Hyperpigmented basal keratinocytes & dermal melanophages. Slight in single basal melanocytes; NO nests. More info like this in