“…castration, there is a temporary decrease in the level of 17-ketosteroids in the urine, but these levels rise after variable periods of time (Tamm et al, 1965;Wilkins, 1966). A similar response has been observed after the administration of estrogens (Burt et al, 1957;Geller et al, 1967).The concept that other glands ,may play a role in the function of the prostate gland had led to the use of adrenalectomy (Morales et al, 1955) and hypophyseal ablation (Fergusson and Phillips, 1962;Fergusson, 1968) in the treatment of relapsing carcinoma of the prostate.The purpose of this paper is to report the experience with a group of 23 patients treated by Yttrium'" hypophysectomy for late carcinoma of the prostate.…”