Dermoscopy of pigmented oral lesions; A research study ScienceDirect 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 What is Melanotan II the drug that the TGA urges consumers to avoid? Pigmentations of the oral cavity PPTX The Pigmented Hard Palate: A Long Term Outcome of Imatinib Actas Dermo Sifiliogrficas Who's tan is reay for summer. This peptide can help.