Ultrasonographic Differentiation of Small Angiomyolipoma from Renal Cell Carcinoma by Measuring Relative Echogenicity on PACS

ABSTRACT

PURPOSE: To retrospectively evaluate the diagnostic value of ultrasonographic differentiation of small angiomyolipomas (AMLs) from renal cell carcinomas (RCCs) by measuring relative echogenicity (RE) on PACS. MATERIALS AND METHODS: Thirty-six cases of or = 0.840, p < 0.05) with competitive sensitivity/specificity for differentiating AMLs from RCCs regardless of AML subgroups. CONCLUSIONS: RE measurement on PACS can be helpful in the differential diagnosis of small AMLs and RCCs with the intrinsic merits of ultrasonography.