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目的探讨肾细胞癌(RCC)的超声表现及特征,评价超声对其的诊断价值。方法对2006年10月-2012年6月间35例肾细胞癌超声声像图总结。所有病例中瘤体小于3 cm 8例,瘤体3~5 cm 18例,瘤体大于5 cm 9例;CDFI血流呈抱球型12例,较丰富8例,星点状血流10例,少血流显示5例。肾透明细胞癌26例,肾颗粒细胞癌1例,肾乳头状细胞癌5例,肾肉瘤样癌1例,肾囊性肾细胞癌2例;肿瘤呈中低回声23例,无回声1例,高回声5例,混杂回声6例。分析研究肿瘤大小、有无血流、病理类型及超声声像图表现之间的联系。结果肾细胞癌的超声声像图表现多为边界较清的均匀低回声及等回声团块,肿块周边及内部血流信号多丰富,高速低阻血流信号是诊断恶性肿瘤的标记。结论超声对肾脏占位病变的诊断和良恶性病变的鉴别诊断有较高价值。
Objective To investigate the ultrasonographic features of renal cell carcinoma (RCC) and to evaluate the diagnostic value of ultrasound in the diagnosis of renal cell carcinoma (RCC). Methods From October 2006 to June 2012, 35 cases of renal cell carcinoma were analyzed with sonography. In all cases, the tumor size was less than 3 cm in 8 cases, the tumor size was 3-5 cm in 18 cases and the tumor volume was greater than 5 cm in 9 cases. The CDFI was in 12 cases with hemoglobin, 8 cases more abundant, 10 cases of star-shaped blood flow , Less blood flow showed in 5 cases. 26 cases of renal clear cell carcinoma, 1 case of renal granulosa cell carcinoma, 5 cases of renal papillary carcinoma, 1 case of renal sarcomatoid carcinoma and 2 cases of renal cystic renal cell carcinoma. The tumors showed moderate to low echo in 23 cases and no echo in 1 case , 5 cases of high echo, 6 cases of mixed echo. Analyze the relationship between tumor size, presence or absence of blood flow, pathological type, and sonographic findings. Results Most of the ultrasonographic findings of renal cell carcinoma were more homogeneous hypoechoic and isocentric masses with more clear boundaries. The peripheral and internal blood flow signals were abundant, and the high-speed and low-resistive blood flow signals were the markers for the diagnosis of malignant tumors. Conclusion Ultrasound has a high value in the diagnosis of renal space-occupying lesions and in the differential diagnosis of benign and malignant lesions.