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Abdominal MRI before microwave ablation shows a rounded lesion in liver segment 6, measuring 2.1 × 2.1 cm, which demonstrates T2 hyperintensity with heterogeneous internal enhancement or restricted diffusion on MRI (a). 2 months after microwave ablation of the liver, there is evidence of postoperative and postmicrowave changes in the liver, with no suspicious enhancement in the ablation bed to suggest definite residual or recurrent tumor, and no new focal liver lesions (b).
