Oral Mucosal Melanosis IntechOpen 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 a Melanotic macule at the wetdry line of the lower lip. b Melanotic Download Scientific Diagram Does anyone know what this black mark on my lip is? Started last August so it's I've had it nearly a year, was living in Spain at the time for 6 months Dental Update Malignant oral melanoma: how to spot it and how it is managed Dental Update