Brown spots, especially on the lips, can be alarming to some. In some instances it can indicate rare oral mucosal melanoma, however in this case it was a non cancerous labial melanotic macule. Labial melanotic macule. B). Increased numbers of me lanocytes along Download Scientific Diagram Oral Mucosal Melanosis IntechOpen Differential Diagnosis of Pigmented Lesions in the Oral Mucosa: A Clinical Based Overview and Narrative Review Melanotic Macules, Naevi, and Melanoma Springer Nature Link Pigmented Oral Lesions: Clues to Identifying the Potentially Malignant Consultant360