Ultrasound-guided microwave ablation for abdominal wall metastatic tumors: A preliminary study

Figure 1 Ultrasound findings in a 56-year-old woman with abdominal wall tumor metastasized from liver and adrenal gland cancer. A: Contrast-enhanced magnetic resonance imaging (MRI) scan shows a lesion with hyperenhancement in T2-weighted images in the abdominal wall (arrow); B: Arterial phase in contrast-enhanced ultrasound (CEUS) shows hyperenhancement within the lesions (arrow); C: CEUS scan obtained 3 d after microwave (MW) ablation shows a hypoechoic area with no enhancement, suggestive of complete necrosis (arrow); D: Contrast-enhanced MRI scan shows a lesion with hypoenhancement in T2-weighted phase MR image obtained 1 mo after MW ablation revealing complete ablation. Contrast-enhanced MRI scan shows a lesion with hypoenhancement in T2-weighted images in the abdominal wall (arrow); E: Sonogram obtained before MW ablation shows hypoechoic nodule of 2.48 cm in maximum diameter in the abdominal wall (arrow); F: Arterial phase in CEUS shows hyperenhancement within the lesions (arrow); G: Sonogram obtained during MW ablation shows one antenna being inserted into the nodule; H: Abdominal wall edema occurred at the right lumbar in the arterial phase of contrast-enhanced CT (arrow).