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A 54-year-old man with colon cancer. A CT scan was obtained 3 months after right hepatectomy (left) shows hepatic 3-cm-diameter metastasis (arrow). A CT scan obtained at the same level 2 months after radiofrequency ablation of tumor (right) shows hypodense “scar.” The scarred area is completely covering the site of the metastasis. Reprinted from de Baere, et al.,161 with permission from the American Roentgen Ray Society.
