Since Hallopeau1,2 (1887) first described "lichen planus atrophicus,'' now known as lichen sclerosus et atrophicus,* there has been a plethora of confusing information regarding the segregation of this eruption as an authentic disease. The dermatosis has been placed in such various categories as lichen planus sclerosus, atrophic lichenoid dermatitis, white-spot disease, lichen albus, card-like scleroderma, morphea guttata— and many others. It was not until Kogoj3,4 (1934), Montgomery and Hill,5 (1940) and subsequent contributors brought out its specific clinical and histological features that the criteria for a classification of LSA were finally clarified.
Although information on the general characteristics of LSA has been developed in the past years, there is still a lack of specific knowledge of the clinicopathologic features of the disease as it manifests itself on the female genitalia. Cases are often erroneously diagnosed as kraurosis vulvae, leukoplakia, and other precanceroses. As the consequence of incomplete