Extragenital hiperkeratotic lichen sclerosus resembling lichen planus

Lichen sclerosus is a chronic sclerosing inflammatory disease. the disease is 6-10 times more common in women and more frequent between the ages of 8-13 and 50-60 years. etiology is unknown exactly. but autoimmunity, genetic, hormonal factors, infections and trauma may be responsible in etiology. a patient, a 53-year-old woman, admitted to our clinic with white papules on her wrists and feet dorsum. emollients, high potency topical steroids, topical tacrolimus, antimalarial drugs, systemic or intralesional steroids, narrow band uvb, puva, carbon dioxide laser and surgery may be used in treatment. cases of lichen sclerosus mimicking lichen planus are rarely seen in the literature and these situations may be confused with each other. we report this case for the unusual presentation of lichen sclerosus and hiperkeratotic form.