“…The radiosensitivity of Bowen's dis ease has been reported to be higher than that of erythroplasia of Queyrat [2,13,17], Orig inally, the type of radiation selected was con tact therapy after Chaoul [11] and occasion ally grenz-ray therapy [11,15] or beta-ray therapy with strontium-90 [16], Ultimately, the dermatological radiotherapists in gener al favor soft-X-ray therapy [2,II,13,14,17]. Particularly suitable indications for ra diotherapy arc: large lesions, localization on eyelids, fingers or toes, periungual or perigenital areas [15,17],…”