Pathology Outlines Pigmented lesions vulva 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 Oral Mucosal Melanosis IntechOpen Histomorphometric and Immunohistochemical Characteristics of Oral Melanotic Macule Overlap with Oral Mucosal Lentigo Volume 6 Issue 1 a Melanotic macule at the wetdry line of the lower lip. b Melanotic Download Scientific Diagram Metastatic oral malignant melanoma transformed from pre existing pigmented lesions in mandibular gingiva: Report of an unusual case ScienceDirect