Pigmented Lesions of the Oral Mucosa: Clinical Presentation, Histology, and Recommendations for Management American Journal of Clinical Dermatology Springer Nature Link 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 Understanding Melanosis Eye: Symptoms, Causes, and Treatments Northwest Eye Melanotic Neuroectodermal Tumor of Infancy MD Searchlight