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. 2015 May 27;10(2):875–878. doi: 10.3892/ol.2015.3285

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Figure 4. — (A) Preoperative contrast-enhanced ultrasonography revealed multiple hyperechoic tumors in the right liver (largest, 78×53 mm). (B) Ultrasonography immediately following radiofrequency ablation showed the tumor as a hyperechoic region. (C) Abdominal enhanced computed tomography revealed that the initial liver tumors had been replaced by non-enhanced regions (i.e. ablation zones). (D) Contrast-enhanced ultrasonography revealed multiple contrast agent filling defects in the right liver. No liver metastases were observed.