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 PDF) Labial Melanotic Macule Diagnosed by Dermoscopy Oral Pigment lesions My Doctors Dental Update Malignant oral melanoma: how to spot it and how it is managed Dental Update 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