The average CT value of clear cell carcinoma was significantly higher than that of papillary carcinoma and chromophobe carcinoma in corticomedullary, nephrographic and excretory phase by enhancement scan. 增强时肾透明细胞癌的皮质期、实质期和排泄期实性成分平均CT值明显高于乳头状癌和嫌色细胞癌。