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 Figure 1 from Oral melanotic macule a case report. Semantic Scholar Labial melanotic macule A Better Way to Distinguish Among Melanomas? Contemporary Approaches to Malignant Melanoma Pigmented Oral Lesions: Clues to Identifying the Potentially Malignant Consultant360 Figure 1 from Dermoscopy of venous lake on the lips: A comparative study with labial melanotic macule Semantic Scholar