Lichen sclerosus et atrophicus is a chronic skin disease with multiple clinical presentations. It affects women, and less frequently men and children. The disease is usually located in the anal and genital regions. There is a strong association with autoimmune diseases, and immunogenetic studies demonstrated an association with HLA DQ7. The disease rarely affects extra-genital regions. The authors report two cases of lichen sclerosus et atrophicus in atypical locations (extra-genital), in which different management was used. High potency topical corticosteroid therapy is reported, with risks, however. Topical immunomodulating agents are described, obtaining favorable clinical responses and decreased risk of atrophy.
Atrophy; Lichen sclerosus et atrophicus; Scleroderma, localized