LABIAL LENTIGO, Labial Lentigo also called a labial melanotic macule, is a harmless, small, flat, brown spot on the lip. It can develop after repeated sun exposure. In most cases, labial lentigo Oral Melanotic Macule MEDizzy Primary Malignant Melanoma of the Mandible: A Diagnostic Dilemma and Surgical Management of a Rare Entity Cureus Melanotic macules of the tongue in a newborn Journal of the American Academy of Dermatology