Diffuse pigmentation of the oral mucosa Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontics Lentigo pathology Pathology Outlines Nevi general 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 Photomicrographs showing infiltration of malignant melanocytes into the Download Scientific Diagram Pigmented Lesions of the Oral Cavity Oral and Maxillofacial Surgery Clinics