Programs that are staffed by specialists who provide comprehensive preventive, diagnostic and treatment services for individuals who have benign and malignant disorders of the skin and related tissues of the mouth, external genitalia, hair and nails as well as advice regarding the care of normal skin. Dermatologists use a variety of diagnostic procedures including microscopic and microbiologic examination of the skin and its secretions and treatment methods which may include externally applied, injected and internal medications; selected x-ray and ultraviolet light therapy; and a range of surgical procedures using instruments which include the scalpel, surgical curette, electrosurgical unit, freezing surgical unit and laser.