Figure 2.

Case of a 56-year-old woman treated with radiofrequency ablation. (a) Thoracic inlet X-ray showing a large retrosternal goiter with left deviation (white arrow) and indentation of the trachea. (b) Two-planes gray-scale ultrasound (US) showing pretreatment evaluation of an almost completely solid right thyroid lobe nodule (Volume: 28.8 mL). (c) Gray-scale US at 6 months after treatment showing volumetric reduction of the ablated nodule (yellow dotted lines = evaluation of the ablated area with B-mode US). (d) Contrast-enhanced ultrasound (CEUS) at 6 months after treatment demonstrating the area of ablation as an area with lack of enhancement (white crosses = evaluation of the ablated area with CEUS). (e) After CEUS-treated nodule evaluation, treatment results can be better reconsidered on the grey-scale US (c) showing real ablated nodule margins (yellow dotted lines and encircled area) as compared to previously measured margins (white arrows; red encircled area).