8Fortman HP,Middleton WD,Melson GL,et al.Hyperechoic renal cell carcinomas:increase in detection at US.Radiology,1993,188:431-434 被引量:1
9Yamashita Y,Ueno S,Makita O,et al.Hyperechoic renal tumors:anechoic rim and intratumoral cysts in US differentiation of real cell carcinoma from angiomyolipoma.Radiology,1993,188:179-182. 被引量:1