Oral Malignant Melanoma Oral Cancer Foundation Information and Resources about Oral Head and Neck Cancer Lingual melanotic macule the first case report in an adult patient* Anais Brasileiros de Dermatologia Pigmented Lesions of the Oral Mucosa Springer Nature Link Black and Brown: Non neoplastic Pigmentation of the Oral Mucosa Head and Neck Pathology Springer Nature Link Differential Diagnosis of Pigmented Lesions in the Oral Mucosa: A Clinical Based Overview and Narrative Review 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