COM Dec. 2011 Diagnosis UW School of Dentistry Pigmented Lesions of the Oral Mucosa Pocket Dentistry What Caused These Multiple Hyperpigmented Macules of the Mouth? 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 Melanotic macules of the tongue in a newborn ScienceDirect Black and Brown: Non neoplastic Pigmentation of the Oral Mucosa Head and Neck Pathology Springer Nature Link