A voluminous literature has accumulated since the first description of lichen sclerosus et atrophicus by Hallopeau in 1887. During the last 20 years the concept of lichen sclerosus et atrophicus, submitted to much controversy and criticism in the past, was carefully correlated with the histopathologic picture. This led to the integration of several varieties, described under different names, into one clearly defined entity. Although terms like "white-spot disease" are still occasionally used in the foreign literature (Miescher),7 there is agreement as to their synonymous meanings, designating a disease that is well defined histopathologically.
The observation of a case of extensive lichen sclerosus et atrophicus with the previously undescribed association of oral lesions and a review of the medical literature up to the present time have demonstrated again that a number of questions as to histopathogenesis, morphological appearance, and therapy, are controversial