Dark Colored Lesions: Brown, Blue, Gray, or Black Disorders Obgyn Key Early diagnosis of genital mucosal melanoma: how good are our dermoscopic criteria? Abstract Europe PMC 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 Genital Lentiginosis: A Benign Pigmentary Abnormality Often Raising Concern for Melanoma MDedge 2021.1.25.melanotic_macules Our Dermatology Online