Definition of melanocytic macules associated with Peutz Jeghers syndrome NCI Dictionary of Genetics Terms NCI 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 Laser Lip Treatment for Lip Discoloration: Patient Transformation Mucosal melanocytic macules Mucosal Melanotic Macule Springer Nature Link Any idea what's on my lips? : r Blackskincare