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目的分析肾细胞癌(RCC)的 CT 表现,以期提高对该病的诊断正确性。方法回顾性分析300例经病理证实的 RCC 的 CT 表现。结果肿瘤长径为1.5～16.0 cm,平均4.8 cm,左肾125例、右肾175例。根据世界卫生组织(WHO)2004年公布的肾肿瘤组织学分型,分为透明细胞癌238例、多房性透明细胞癌6例、乳头状癌23例、嫌色细胞癌14例、未归类癌19例。上述各型 RCC有其特征性的 CT 表现,透明细胞癌呈不均匀(因出血、坏死、囊变)而富血供;多房性透明细胞癌呈多房囊性肿块,囊壁和间隔薄而均匀,且无膨胀性结节;乳头状癌呈不均匀而少血供;嫌色细胞癌呈较均匀而少血供,未归类癌与透明细胞癌相似,但更具侵袭性生长。结论常见 RCC 各亚型有其特征性的 CT 表现,有助于鉴别诊断。
Objective To analyze the CT manifestations of renal cell carcinoma (RCC) in order to improve the diagnostic accuracy of the disease. Methods The CT findings of 300 cases of pathologically confirmed RCC were retrospectively analyzed. Results The long diameter of the tumor was 1.5 ~ 16.0 cm with an average of 4.8 cm. There were 125 cases of left kidney and 175 cases of right kidney. According to the World Health Organization (WHO) published in 2004 renal histology, divided into 238 cases of clear cell carcinoma, 6 cases of multilocular clear cell carcinoma, papillary carcinoma in 23 cases, 14 cases of chromophobe carcinoma, not classified 19 cases of cancer. The above-mentioned various types of RCC has its characteristic CT manifestations, clear cell carcinoma was uneven (due to bleeding, necrosis, cystic change) and rich blood supply; multilocular clear cell carcinoma was multi-cystic mass, wall and the spacer thin Uniform, and no expansion of nodules; papillary carcinoma was uneven and less blood supply; chromophobe cancer was more uniform and less blood supply, not classified as clear cell carcinoma with cancer, but more aggressive growth. Conclusion Common subtypes of RCC have their characteristic CT manifestations, which is helpful to differential diagnosis.