Labial melanotic macule (brown spot on lip) (Stony Brook Case 1) dermatology dermatopathology 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 A brown macule on the vermilion border of the lower lip. Download Scientific Diagram Clinical Challenge: Dark Lesion on Lower Lip MPR The Prevalence of Oral Pigmented Lesions among Sample of Dental Students. Mystery behind labial and oral melanotic macules: Clinical, dermoscopic and pathological aspects of Laugier Hunziker syndrome