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目的：探讨ＣＴ及ＭＲＩ诊断囊性肾癌的价值。材料与方法：囊性肾癌９例的ＣＴ及ＭＲＩ特征性表现分析与手术病理对照。结果：肿瘤位于右肾６例，左肾３例，呈椭圆形及不规则形。ＣＴ呈囊性低密度区，ＭＲＩ的Ｔ１ＷＩ呈低信号，Ｔ２ＷＩ呈高信号区。ＣＴ及ＭＲＩ的特征性表现：（１）肿瘤囊壁厚薄不均，可伴有囊内壁结节；（２）单囊腔多于多囊分隔；（３）肿瘤由肾实质向外生长，肿瘤与肾脏构成“８”字形；（４）肿瘤压迫肾脏向腹腔移位及肾脏代偿性增大。结论：本研究总结的ＣＴ及ＭＲＩ特征性表现，为囊性肾癌的诊断与鉴别提供了依据。
Objective: To investigate the value of CT and MRI in the diagnosis of cystic renal cell carcinoma. Materials and Methods: CT and MRI features of cystic renal cell carcinoma in 9 cases were compared with those of surgery and pathology. Results: The tumor was located in 6 cases of right kidney and 3 cases of left kidney with oval and irregular shape. CT cystic low density area, MRI T1WI showed a low signal, T2WI showed a high signal area. The characteristic features of CT and MRI are as follows: (1) The uneven thickness of the tumor wall can be associated with the cystic wall nodules; (2) the single cyst is more than the cystic compartment; (3) the tumor grows outward from the renal parenchyma; the tumor And the kidneys constitute the “8” shape; (4) the tumor pressure kidney to the peritoneal cavity shift and renal compensatory increase. Conclusion: The CT and MRI features summarized in this study provide the basis for the diagnosis and differential diagnosis of cystic renal cell carcinoma.