Maturity Melanosis Causes & Symptoms Pigmentation Treatment FMS Skin & Hair Clinics Freckle on Lip: Meaning, Causes and Is It Dangerous? (Labial Melanotic Macule) La Bouche Parfaite Amelanotic Melanoma: Symptoms, Outlook, and Treatment Clinical features of cutaneous melanotic nevihead and neck region. a Download Scientific Diagram 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