Effects of Gray-Scale Ultrasonography Immediate Post-Contrast on Characterization of Focal Liver Lesions

Figure 6

A 69-year-old woman was found to have a liver lesion. The lesion was diagnosed as benign by biopsy 2 years ago but grew up in recent days. (a) US pre-CEUS showed a tumor with clear border and heterogeneous texture in the right liver lobe. (b) US post-CEUS showed that the tumor presented clear border, halo sign, and distal sonic enhancement. The typical “nodule in nodule” and “mosaic” signs were visible in it. The lesion was regarded as HCC by post-CEUS.

(a)

(b)