Sclera and atrophic lichen Lichen

Sclera and atrophic lichen Lichen

    * Introduction
    * Symptoms and Diagnosis
    * Treatment
Lichen sclera is a chronic inflammatory dermatosis that causes white boards with dermal atrophy. Shows the genital and extragenital manifestations. It is known under different names such as the balance xerotica Peripheral, kraurosis vulvae. The damage there is an increased risk of vulvar squamous cell carcinoma.
Male genital lichen is observed almost exclusively in uncircumcised men. Lichen sclera shows no increased mortality if the patient develops a cancer in the affected area. Developed cancer of the genital areas is rarely described. Many pediatric cases not improve at puberty. Most cases of genital and the genital are asymptomatic, except for cosmetic appearance and itching. Severe cases are associated with progressive scarring and erosion or significant sexual dysfunction.
Lichen sclera begins by white papules, which coalizeaza polygonal slabs. Sizes range from several mm up to full trunghiul. Genital lesions can occur anywhere on the body, although they are frequently on the back and shoulders. Asymptomatic genital lichen not usually require treatment. Genital lesions respond to topical corticosteroids. The clinical aspect always does not disappear although it improves symptomatic. Circumcision may promote lichen sclera and phimosis in men who accompany him. Vulvar surgery is not recommended if malignancy is present. The prognosis is good for genital cases, especially in pediatric patients that can resolve spontaneously. In cases of genital prognosis is negative.
Pathogenesis and causes
Inflammation and impaired function of fibroblasts in papillary dermis fibrosis leads to upper dermis. Genital skin and mucosa are most frequently affected, but extragenital lichen appears sclera. It describes the systemic disease. The cause of lichen sclera is unknown. Several theories have been proposed. These involve infection with Borrelia, genetic and autoimmune factors, local irritation. Lichen sclera has a high occurrence factor premenopausale women on oral contraceptives.