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: Clinical Presentation, Histology, and Recommendations for Management American Journal of Clinical Dermatology Springer Nature Link Feline Iris Hyperpigmentation MSPCA Angell Labial melanotic macule Clinical features of cutaneous melanotic nevihead and neck region. a Download Scientific Diagram Preventing melanosis in shrimp Responsible Seafood Advocate