Pigmented Lesions of the Oral Cavity Oral and Maxillofacial Surgery Clinics Dermoscopy of venous lake on the lips: A comparative study with labial melanotic macule PLOS One Happy Wednesday! , In this video, a patients labial melanotic macule (a benign pigmented lesion) is being treated with liquid nitrogen. Labial melanotic macules are flat and asymmetrical with a Oral Melanotic Macule: Symptoms and Treatment Skinsight Mystery behind labial and oral melanotic macules: Clinical, dermoscopic and pathological aspects of Laugier Hunziker syndrome 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