[Modern approach to classification of precancerous conditions and vulvar dystrophy].

Precancerous conditions of vulva are diseases which can exceed into carcinomas and are called preblastomatoses. These are all sorts of various diseases: intraepithelial vulvar neoplasias, Paget's disease, precancerous circumscript melanosis, malignant melanoma of the first Clark level, verrucous type of leukoplakia, vulvar dystrophy with atypia, giant Buschke-Lowenstein's condyloma and chronic skin damages. Vulvar dystrophy belongs to medical terminology since 1966 and includes a group of diseases known as leukoplakia and kraurosis, primary vulvar atrophy and hyperplastic vulvitis. According to classification from 1987 vulvar dystrophies are divided into: squamocellular hyperplasia, lichen sclerosus and other dermatoses. The term vulvar leukoplakia is not a special disease, but is used for a whole group of different lesions of white color due to leukoderma, vitiligo, chronic infections, benign tumors, dystrophies and even invasive carcinomas.