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. Intra oral photograph of the lesion, melanotic macule as well as the Download Scientific Diagram PDF] Oral melanoacanthoma and oral melanotic macule: a report of 8 cases, review of the literature, and immunohistochemical analysis. Semantic Scholar PPT Oral Pigmentation PowerPoint Presentation, free download ID:9729452 Melanotic Macules, Naevi, and Melanoma Springer Nature Link