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. Melanotic Macules, Naevi, and Melanoma Springer Nature Link Initial clinical appearance with melanotic macules located on lower Download Scientific Diagram Differential Diagnosis of Pigmented Lesions in the Oral Mucosa: A Clinical Based Overview and Narrative Review Mucosal melanocytic macules Pigmented Lesions Springer Nature Link