本文评价了209例第三期前列腺腺癌病人经外放射治疗后,原发肿瘤得到临床控制。追踪时间最少两年,92％的病人没有因为梗阻而需再行前列腺手术。为预防发生梗阻而在放射治疗以前切除前列腺是不必要的;放射以前只作穿刺活检的129个病人中有90％的病人因为放疗后肿瘤缩细,梗阻症状和(或)刺激症状得到改善,这些病人都不必再手术来解除梗阻。 This article evaluated the clinical control of primary tumors after external radiotherapy in 209 patients with stage III prostate adenocarcinoma. The follow-up time was at least two years, and 92% of patients did not have to undergo prostate surgery because of obstruction. It is not necessary to remove the prostate prior to radiation therapy to prevent obstruction; 90% of the 129 patients who had previously undergone needle biopsy have improved tumor size, obstructive symptoms and/or irritation after radiotherapy. None of these patients need surgery to relieve obstruction.