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Fig. 3 | BMC Cancer

Fig. 3

From: Patient satisfaction of radiofrequency ablation for symptomatic benign solid thyroid nodules: our experience for 2-year follow up

Fig. 3

Images of RFA treatment and follow-up of a thyroid nodule at left lobe in medium group. a Conventional ultrasound image shows a thyroid nodule with solid portion over 80%. b CEUS performed before RFA shows an irregular enhancement in nodule with a regular hyperechoic ring around the nodule (white arrows). c During RFA, ultrasound monitoring of the procedure shows gas formation in the nodule which covered by a hyperechoic ablation area (white arrows). d CEUS performed immediately after RFA shows a complete lack of enhancement in the treated area (white arrows). e One month after RFA, CEUS shows the treated area shrunk and that complete lack of enhancement (white arrows). f 1-year after RFA, CEUS shows complete lack of enhancement in the treated area, remained as a small scarlike lesion (white arrows)

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