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肾肿瘤大多为恶性,在成人恶性肿瘤中,肾肿瘤占3%,在原发性肾恶性肿瘤中,肾癌占85%。欧美国家的发病率明显高于亚洲国家。男女发病比例为2～3∶1。发病高峰年龄为50～70岁。2005年美国36160人被诊断为肾细胞癌,而12660人死于该病,并且这些数字将以每年2%～3%速度的增长。20世纪8
Kidney tumors are mostly malignant, with 3% of kidney tumors in adult malignancies and 85% of kidney cancers in primary renal malignancies. The incidence of Europe and the United States was significantly higher than in Asian countries. Male and female incidence ratio of 2 ~ 3: 1. The peak incidence age of 50 to 70 years old. 36,160 Americans were diagnosed with renal cell cancer in 2005, and 12660 people died of the disease, and these numbers will grow at 2% to 3% annually. 20th century 8