Labial melanotic macule (brown spot on lip) (Stony Brook Case 1) dermatology dermatopathology 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 AD :: Annals of Dermatology 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