Chronic localized scleroderma is a rare disease of the skin and subcutaneous tissue with an unknown etiology and pathogenesis, char- acterized by a variety of clinical variants. Pathological changes occur in the form of three consecutive stages of erythema or edema, induration and the formation of sclerosis and/or atrophy; however, such staging is not observed in all cases. Localized scleroderma covers a wide range of clinical variants, from solitary skin lesions with minimal discomfort to severe subtypes such as generalized or linear scleroderma. Research on development of a modern classification, clarification of the pathogenesis of the disease and effective methods of therapy is ongoing. Topical glucocorticosteroids are the first-line treatment for localized scleroderma. Ultraviolet A1 (UVA1) phototherapy is used to treat patients with advanced lesions.

Keywords: ultraviolet phototherapy, methods of therapy, etiopathogenesis factors, localized scleroderma, topical glucocorticosteroids, classification