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 Differentiating between early melanomas and melanocytic nevi: A state of the art review ScienceDirect Pathology Outlines Melanotic macule Melanocytic Proliferations Clinical Tree Benign Pigmented Skin Lesions Pediatric Surgery NaT RACGP AJGP (Australian Journal of General Practice)