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

Figure 2

A 37-year-old woman with hepatic tumor and history of breast cancer. (a) US pre-CEUS showed multiple lesions (↑) with indefinite border in the liver. (b) US post-CEUS showed that the tumor was irregular in shape and had clear border. A new small lesion with halo sign (↑) (1.0 cm) was found in segment VIII as well at 6 minutes after contrast agent injection. This patient was considered as liver metastasis after review of US post-CUES and was confirmed by biopsy.

(a)

(b)