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Fig. 2B. 56-year-old man with residual unablated tumor after
radiofrequency ablation of hepatocellular carcinoma abutting stomach (tumor
number 3 in Table 1).
Transverse sonogram obtained during radiofrequency ablation shows slightly
hypoechoic hepatocellular carcinoma (arrows). Note 3-cm active tip
(arrowheads) of internally cooled electrode within tumor. Twice
overlapping ablations were performed for 24 min.