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 Pigmented Lesions of the Oral Mucosa Springer Nature Link Labial Lentigo (labial melanotic macule) Cancer Therapy Advisor Melanotic macules of the tongue in a newborn Journal of the American Academy of Dermatology Comment below