摘要回顾性分析2018年1月至2019年12月于复旦大学附属中山医院及复旦大学附属中山医院徐汇医院行手术治疗的BosniakⅡF类和Ⅲ类囊性肾占位（CRM）106例患者临床资料。通过分析灵敏度和特异度等参数比较Bosniak分类系统和肾囊肿指数（RCI）两种评估方法对CRM性质诊断的准确性。在106例患者中，男62例，女44例，中位年龄56岁。病理结果提示良性72例，恶性34例。RCI诊断的灵敏度为94.12%，特异度为81.94%；Bosniak分类系统灵敏度为73.53%，特异度为80.56%。χ2检验结果显示RCI诊断的灵敏度较Bosniak分类高（ P=0.023）。本研究结果提示，RCI是一种较为简洁的评判CRM性质的量化评估方法，易于临床使用。

abstractsA total of 106 patients who were diagnosed with Bosniak catergory ⅡF or Ⅲ cystic renal masses (CRM) and underwent surgery in Zhongshan-Xuhui Hospital and Xuhui District Central Hospital between January 2018 and December 2019 were retrospectively analyzed. The diagnostic accuracy of renal cyst index (RCI) and Bosniak classification system was compared by analyzing the relevant parameters including the sensitivity and specificity. There were 62 males and 44 females, with a median age of 56 years old. Among the 106 CRM, 72 were benign and 34 were malignant. The sensitivity and specificity of RCI was 94.12% and 81.94%, respectively, while the sensitivity and specificity of Bosniak classification system was 73.53% and 80.56%, respectively. Chi-square test revealed that the sensitivity of RCI was significantly higher than that of Bosniak classification system ( P=0.023). The current study indicates that RCI is a simple and feasible method which can provide quantitative evaluation for predicting characteristics of CRM.