What is Lichen planus pigmentosus?

Lichen planus pigmentosus (LPP) is a rare form of lichen planus. It is characterized by oval or irregularly-shaped brown to gray-brown macules and patches on the skin. Areas that are exposed to sun such as the forehead, temples and neck are most commonly affected. read more

Classification. Lichen planus (LP) is a chronic inflammatory disease of the skin, mucous membranes and nails.. Lichen planus lesions are so called because of their "lichen-like" appearance and can be classified by the site they involve, or by their morphology. read more

Lichen planus pigmentosus is similar to erythema dyschromicum perstans and may be the same disease. Lichen planus pigmentosus may rarely affect the lips, resulting in a patchy dark pigmentation on upper and lower lips. read more