Pigmented Oral Lesions: Clues to Identifying the Potentially Malignant Consultant360 Does anyone know what this black mark on my lip is? Started last August so it's I've had it nearly a year, was living in Spain at the time for 6 months Mystery behind labial and oral melanotic macules: Clinical, dermoscopic and pathological aspects of Laugier Hunziker syndrome Mucosal melanocytic macules Melanotic macules of the tongue in a newborn Journal of the American Academy of Dermatology