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 Oral pathology: Noting a pigmented macule that often presents a diagnostic dilemma Registered Dental Hygienists Pathology Outlines Melanotic macule Focal melanocytic lesions of the oral mucosa: An epidemiological and morphological study Santana 2023 Oral Diseases Wiley Online Library Mystery behind labial and oral melanotic macules: Clinical, dermoscopic and pathological aspects of Laugier Hunziker syndrome Lichen Planus Pigmentosus with True Melanocytic Nests: A Case Report with a Comprehensive Literature Review