PDF] Oral melanoacanthoma and oral melanotic macule: a report of 8 cases, review of the literature, and immunohistochemical analysis. Semantic Scholar Pigmented Lesions of the Oral Mucosa Pocket Dentistry 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 this in Labial melanotic macule Melanotic Macules, Naevi, and Melanoma Springer Nature Link Multifocal Pigmentation of the Oral Cavity The Journal of the American Dental Association