[Vulvar dermatoses].

Vulvar dermatoses are the localizations to the vulva of a great variety of dermatoses. In genodermatoses, the expression of diseases on the vulva is a part of a complex syndrome. It is non indispensable for the diagnosis. In the immuno-allergic dermatoses or in dermatoses where the pathogenesis is not clearly understood, the vulvar disease is very important because the vulva is often the exclusive localization. The vulvar disease can be the first manifestation before the other expressions of the mucocutaneous disease. Sometimes, there is a risk of scars or transformation in epithelioma. So the diagnosis must be soon established. At least, hidradenitis suppurativa is disease where the choice of the must appropriate treatment is difficult.