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. B). Increased numbers of me lanocytes along Download Scientific Diagram Pigmented Lesions of the Oral Cavity Oral and Maxillofacial Surgery Clinics Citalopram Induced Oral Melanotic Macules in a Female Patient and a Review of the Literature Cureus Figure 225 from Pigmentations of the Oral Mucosa and Facial Skin Semantic Scholar Pigmented macular lip lesion Clinical Advisor