|Vulva — Lichen Sclerosus|
In 1987, the international society for the study of vulvovaginal diseases proposed a classification for the non-neoplastic epithelial disorders of the vulvar skin and mucosa. These entities had previously been incorporated under the designation of vulvar dystrophies. This new classification in contrast to the prior classification, which has been based purely on histopathologic features of the lesions, was based on gross and histopathologic features. It is as follows:
Lichen sclerosus was first described by Henri Hallopeau in 1897 who referred to it as lichen planus atrophicus. Lichen sclerosus represents a specific dermatological entity. It is most commonly seen in the genital area in women. It may also be found on other sites of the body. The gross and microscopic appearance and the clinical course of lichen sclerosus are characteristic.
Lichen sclerosus is primarily a disease of the postmenopausal woman, however, it can be seen at any age and not uncommonly is even seen in children (Fig. 1).