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Fig. 4D 72-year-old man with large, irregular tumor mass formed by
three hepatocellular carcinomas treated with multiple-electrode radiofrequency
ablation. First nodule was successfully ablated with 12-minute ablation using
two electrodes (arrows). Second 12-minute ablation with three
electrodes was used to treat distal aspect of larger tumor. Remaining portion
of that tumor and third tumor were treated simultaneously with three
electrodes (not shown).