a Melanotic macule at the wetdry line of the lower lip. b Melanotic Download Scientific Diagram Mystery behind labial and oral melanotic macules: Clinical, dermoscopic and pathological aspects of Laugier Hunziker syndrome Macular Pigmented Oral Mucosal Lesions: An Amalgam Tattoo Case Report Dentistry Today Oral pathology: Noting a pigmented macule that often presents a diagnostic dilemma Registered Dental Hygienists 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 Lentigo (labial melanotic macule) Cancer Therapy Advisor