[A preliminary report of "selective ultraviolet phototherapy" in psoriasis (author's transl)].

35 patients with psoriasis were treated solely by UV irradiation using a Saalmann selective ultraviolet phototherapy lamp (SUP), a mercury lamp with increased emission between 310 and 320 nm. Irradiation four to five times weekly produced 90 to 100% improvement in 83% of the patients. Nineteen of the thus-treated patients showed complete clearing of the psoriatic lesions. The average duration of treatment was 4 weeks. These good results were maintained on a regimen of twice-weekly UV therapy.