前列腺癌是男性最常见的恶性肿瘤之一 ,多见于欧美国家 ,美国每年新增病例约 45 0 0 0人 ,是男性肿瘤中死亡的第二大原因。我国该病在近 2 0年来有上升的趋势。每 10万男性人口发病率从 60年代的 0 .48上升至 90年代的 2 .4。有人估计 5 0 %以上的患者就诊时已处晚期 ,从而不宜 Prostate cancer is one of the most common malignant tumors in men, more common in Europe and the United States. The number of new cases in the United States is about 450 per year, which is the second leading cause of death among men. The disease in our country has been on the rise in the recent 20 years. The incidence of males per 100,000 population increased from 0.48 in the 1960s to 2.4 in the 1990s. It is estimated that more than 50% of patients are already in advanced stages of treatment, which is not appropriate