肾脏囊性占位病变CT及MRI表现与Bosniak分级对比

摘要

Objective:To analyze the CT and MR imaging manifestations of renal cystic lesion and compared with Bosniak classification and to compare the advantages and disadvantages of CT and MR in the diagnosis of the disease,to evaluate the clinical significance of identification of benign with malignant lesions.Methods:116 cases of patients with renal cystic lesions from January 2008 to August 2014 were performed MSCT and MRI scan and enhanced inspection.The diagnosis ability of CT and MRI for renal cystic lesions were compared.Results:There were 96 cases of renal cyst and 20 cases of cystic renal cell carcinoma in the 116 cases of renal cystic lesions.The length diameter of nidus was 0.8~120 cm and the mean was 2.4 cm.85 cases was circular, 15 cases were oval and 16 cases was 'grape'.23 cases had dotted or strip calcified capsule wall,93 cases was without calcification. Conclusion:CT and MRI scan were difficult to diagnose the nature of renal cystic lesions and the significance of enhanced scanning was bigger.MRI enhancement showed lesions details more clearly and the diagnostic accuracy was higher than that of CT.%目的：分析肾脏囊性占位病变的CT及MR影像表现，并与Bosniak分级对比，比较CT及MR对该病诊断的优缺点，评价对鉴别良恶性病变的临床意义。方法：2008年1月-2014年8月收治肾脏囊性占位病变患者116例，均行MSCT及MRI平扫及增强检查。比较CT与MRI对于肾脏囊性占位性病变的诊断能力。结果：肾囊肿96例及囊性肾癌20例。病灶长径0.8～120 cm，平均2.4 cm。呈类圆形85例，类椭圆形15例，类“葡萄状”16例。囊壁见点状或条状钙化23例，无钙化93例。结论：对于肾脏囊性占位性病变，CT 及 MRI 平扫难以诊断其性质，增强扫描意义较大。MRI增强显示病灶细节更清晰，诊断正确率高于CT。