Pigmented Oral Lesions: Clues to Identifying the Potentially Malignant Consultant360 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 Lesion on the Hard Palate AFP Figure 2 from Oral melanotic macule a case report. Semantic Scholar A Rare Case of Oral Mucosal Pigmentation: Differential Diagnosis and Case Presentation JCDA Oral Melanotic Macule MEDizzy