Conclusions Typical cystic renal carcinomas can be well diagnosed, while atypical cases may be misdiagnosed in benign renal cysts by ultrasonography. 结论超声能对典型囊性肾癌作出正确诊断，但不典型者可误诊为良性肾囊肿。
Results Irregular thickening of the cystic walls,septums and solid mural nodules in some cases were specific findings for the ultrasonic diagnosis of cystic renal carcinomas. 结果囊性肾癌的超声特点为囊壁及分隔不规则增厚，部分患者囊壁上可见实性结节。
