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 Transformation of a benign oral pigmentation to primary oral melanoma Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontics Labial Lentigo (labial melanotic macule) Cancer Therapy Advisor Benign Melanocytic Neoplasms Plastic Surgery KeyPlastic Surgery Key Jerad Melanotic macule. Benign. Dark spot on labia (or lip). Analogous to lentigo simplex. Hyperpigmented basal keratinocytes & dermal melanophages. Slight in single basal melanocytes; NO nests. More info like Clinical features of oral pigmented lesions: ( ) Nevus, ( ) melanotic Download Scientific Diagram