肾细胞癌是肾实质的恶性肿瘤,占全身恶性肿瘤的1%,在泌尿系恶性肿瘤中居第三位,多发于50～60岁男性。发病初期无特异临床症状,早期诊断较困难,起病后六个月内确诊者占44%,约30%的患者在确诊时已发生远处转移。肾癌细胞的增殖比例小,倍增周期长,对抗癌药物不敏感,临床 Renal cell carcinoma is a renal parenchymal malignancy, accounting for 1% of systemic malignancies, ranks third in urological malignancies, and frequently occurs in men aged 50 to 60 years. Early onset of no specific clinical symptoms, early diagnosis is more difficult, diagnosed within six months after onset accounted for 44%, about 30% of patients have been diagnosed distant metastasis. Small proportion of renal cell proliferation, doubling cycle length, insensitive to anti-cancer drugs, clinical