Pigmented Lesions and Melanoma Plastic Surgery KeyPlastic Surgery Key Melanotic macules of the tongue in a newborn Journal of the American Academy of Dermatology Labial melanotic macule (brown spot on lip) (Stony Brook Case 1) dermatology dermatopathology Freckle on Lip: Meaning, Causes and Is It Dangerous? (Labial Melanotic Macule) La Bouche Parfaite ORAL MELANOTIC MACULE (OMM) (Also called focal melanosis labial melanotic macule) A benign, localized, flat pigmented lesion of the oral mucosa Caused by a focal increase in melanin production 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