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肾癌的高发年龄为46～65岁。男性多见，男女之比大于2：1。多数患者临床表现呈多样性，且因肾脏属腹膜后器官，位置隐匿，容易误诊为其他疾病和不易早期发现。多年来把血尿、肿块、疼痛称为肾癌的“三联征”；但出现明显血尿时肿瘤多已侵人肾益、肾益，而肿块及疼痛乃因肿瘤已
The high incidence of kidney cancer is 46 to 65 years old. Men more common, male to female ratio is greater than 2: 1. Most patients showed a variety of clinical manifestations, and because the kidneys are retroperitoneal organs, location hidden, easily misdiagnosed as other diseases and not easy to find early. Over the years hematuria, lumps, pain known as the “triple sign” of renal cell carcinoma; but when obvious hematuria has invaded kidney and kidney benefits, kidney benefit, and the tumor and pain have been due to tumor