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. Melanocytic Lesions A Guide to Clinical Differential Diagnosis of Oral Mucosal Lesions Continuing Education Course dentalcare.com Oral pigmented lesions: a pragmatic approach to diagnosis and management Faculty Dental Journal Figure 1 from Oral melanotic macule a case report. Semantic Scholar