Pigmented Lesions of the Oral Mucosa Springer Nature Link A cross sectional study of physiologic volar melanotic macules: Demographic, historical, clinical, and dermatoscopic features of a common yet neglected pigmentary variant in individuals with skin of color Journal of the American Lingual melanotic macule the first case report in an adult patient* Anais Brasileiros de Dermatologia 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 Is focal melanotic lesion potentially malignant? A case report ScienceDirect