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 Labial Melanotic Macule Diagnosed by Dermoscopy Simple cryosurgical treatment of the oral melanotic macule Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontics Pigmented Lesions Springer Nature Link What Caused These Multiple Hyperpigmented Macules of the Mouth? Labial Lentigo (labial melanotic macule) Cancer Therapy Advisor