目的探讨多层螺旋CT对囊性肾 癌的诊断价值。方法 回顾性分析11例经 手术病理证实的囊性肾癌的多层螺旋CT 表现。结果 11例囊性肾癌均为单发单囊 性病变，其中10例为透明细胞癌，1例 为鳞癌。CT表现为肾实质内囊性肿物， 其中7例囊壁较厚，内壁不光整，增强扫 描囊壁不均匀明显强化；2例呈边界清楚 的囊性影伴壁结节，增强扫描壁结节及 邻近囊壁轻中度强化；2例为单纯囊肿癌 变，囊内可见絮片状实性成分，不均匀 强化。结论 囊性肾癌CT表现具有特征 性，有利于术前明确诊断，从而指导临 床手术方案的制订。

Objective To discuss the diagnostic performance of CT in cystic renal cell carcinoma. Methods CT findings of eleven pathologically proved cystic renal cell carcinoma were retrospectively analyzed. Results All of 11 cases wereisolated single cystic lesion, including 10 cases of clear cell carcinoma and 1 case of squamous cell carcinomas. CT scanning showed cystic tumor in therenal parenchyma. Among these 11 cases, 7 cases showed thickened cystic wall and irregular inside wall, while the cystic wall appeared asheterogeneous enhancement on contrast-enhanced CT; 2 cases were carcinogenesis from simple cyst with flocculant flake ingredients in the cyst. Conclusion The CT findings of cystic renal cell carcinoma may benefit the definite diagnosisbefore operation, and in consequently guide the scheme of clinical surgery.