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Copyright ©2010 Baishideng Publishing Group Co.
World J Radiol. Jan 28, 2010; 2(1): 15-31
Published online Jan 28, 2010. doi: 10.4329/wjr.v2.i1.15
Figure 1
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Figure 1 Differential diagnosis of renal masses.
Figure 2
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Figure 2 Histologically proven angiomyolipoma with typical central artery (which has been also described in some oncocytoma). Doppler US analysis reveals a relatively low resistance index (A); In CEUS the lesion shows a hypovascular enhancement (B, C).
Figure 3
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Figure 3 Small renal cell carcinoma (13 mm) not detectable by computed tomography (CT); B-mode reveals an isoechoic lesion without mass effect (A); contrast enhanced ultrasound (CEUS) in the arterial phase showed the lesion slightly hypoenhancing (B) and after 33 s isoenhancing (C); 2D Video shows the transcutaneous biopsy proving clear cell renal cell carcinoma; consecutively the patient underwent surgery.
Figure 4
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Figure 4 Renal cell carcinoma (T1), incidentally detected. CEUS investigation 12 s after injection of 2.4 mL BR1 (SonoVue®).
Figure 5
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Figure 5 Cystic renal lesion with a small RCC (12 mm × 10 mm) not recognized by CT which has been histologically proven by surgery. B-mode US showed a nodularity inside the cyst (A); CEUS revealed contrast enhancement of the small lesion (B, C)[134].