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Definition
By Mayo Clinic staff
Oral lichen planus (LIE-kun PLAY-nus) is an inflammatory condition that affects mucous membranes inside your mouth. Oral lichen planus may appear as white, lacy patches; red, swollen tissues; or open sores. These lesions may cause burning, pain or other discomfort.
Oral lichen planus can't be passed from one person to another. The disorder occurs when the immune system mounts an attack against cells of the oral mucous membranes. The reason for this abnormal immune response is unknown.
Oral lichen planus is usually an ongoing (chronic) condition. Treatments that suppress the immune system abnormalities may improve more severe lesions and lessen pain.
People with oral lichen planus may also have related lichen planus lesions on the skin, genitals or other parts of the body.
- Lichen planus. The Merck Manuals: The Merck Manual for Healthcare Professionals. http://www.merck.com/mmpe/sec10/ch116/ch116g.html. Accessed May 21, 2010.
- Eisen D. The clinical manifestations and treatment of oral lichen planus. Dermatologic Clinics. 2003;21:79.
- Lehman JS, et al. Lichen planus. International Journal of Dermatology. 2009;48:682.
- Farhi D, et al. Pathophysiology, etiologic factors, and clinical management of oral lichen planus. Part I: Facts and controversies. Clinics in Dermatology. 2010;28:100.
- Gibson LE (expert opinion). Mayo Clinic, Rochester, Minn. May 31, 2010.
- Psoriasis. National Institute of Arthritis and Musculoskeletal and Skin Diseases. http://www.niams.nih.gov/Health_Info/Psoriasis/default.asp. Accessed April 18, 2010.
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