Pigmented Oral Lesions: Clues to Identifying the Potentially Malignant Consultant360 Congenital Melanotic Macules of the Tongue The Journal of Pediatrics Melanocytic Lesions A Guide to Clinical Differential Diagnosis of Oral Mucosal Lesions Continuing Education Course dentalcare.com Mystery behind labial and oral melanotic macules: Clinical, dermoscopic and pathological aspects of Laugier Hunziker syndrome 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 Lentigo (labial melanotic macule) Cancer Therapy Advisor