Pigmented Oral Lesions: Clues to Identifying the Potentially Malignant Consultant360 Lingual melanotic macule the first case report in an adult patient* Anais Brasileiros de Dermatologia 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. Mystery behind labial and oral melanotic macules: Clinical, dermoscopic and pathological aspects of Laugier Hunziker syndrome