Ear Nose Throat J. 2012 Mar;91(3):102-4.
FIRST PARAGRAPHS: The cause of lichen planus is not known. Its treatment depends on the specific type–reticular, erosive, or bullous–and usually includes topical or systemic corticosteroids and topical antifungal agents. Patients require lifelong monitoring and/or therapy. Lichen planus (LP) is a chronic, self-limited, inflammatory disorder of unknown etiology that involves mucous membranes, skin, nails, and hair. It is postulated that there is an abnormal T-cell-mediated immune response that results in disruption of the basement membrane. Several drugs are known to be associated with the onset of LP, but the exact mechanism is unknown.
PubMed ID: 22430334
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