Conclusions Typical cystic renal carcinomas can be well diagnosed, while atypical cases may be misdiagnosed in benign renal cysts by ultrasonography. 結論超聲能對典型囊性腎癌作出正確診斷，但不典型者可誤診為良性腎囊腫。
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. 結果囊性腎癌的超聲特點為囊壁及分隔不規則增厚，部分患者囊壁上可見實性結節。
