The area immediately adjacent to the vermillion border of the lips is characteristically ... on children with dark skin (Tarm, Creel, Krivda, & Turiansky, 2004). Facial lesions may be flesh ...

On the skin, lichen planus causes formation of itchy dark lesions, while the mucus membranes develop white lacy patches, red lesions and sores. In the mouth, there may be lesions on the gums ...