women. History Lichen planus was first reported in 1869 by Erasmus Wilson. The origin of the word is believed to be from the Greek word ''Leichen'', which means tree moss, and also from Latin word ''planus'', which means flat and even surface. Dr Wilson explained the condition as an inflammatory disorder with unknown etiology. Initially, the characteristic surface markings or striae was described by Weyl in 1885. In 1895, Wickham further explained the characteristic of the lesion, now known as Wickham striae. Further on, Darier explained the presence of such characteristic markings by correlating with an increase thickness of the granular cell layer. The coexistence of oral, cervical and stomach lichen planus lesions were described by Guogerot and Burnier in 1937. A similar variant of mucosal lichen planus as the vulvovaginal-gingival syndrome with erosive lesions involving oral and vulvovaginal mucosa were introduced by Pelisse and colleagues in year 1982. Research Apremilast is undergoing investigation as a potential treatment. Notes References External links Autoimmune diseases Conditions of the mucous membranes Hepatitis C virus-associated diseases Lichenoid eruptions Oral mucosal pathology