Fig. 1. Ultrasound image of thyroid before RFA. A

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Presentation transcript:

Fig. 1. Ultrasound image of thyroid before RFA. A Fig. 1. Ultrasound image of thyroid before RFA.A. Transverse ultrasound image. B. Longitudinal ultrasound image. Solid nodule (0.9 × 0.7 × 0.5 cm) with marked hypoechogenicty, microcalcification, and spiculated margin in right thyroid gland. No enlarged lymph nodes were detected. C. Pathological images of thyroid nodule acquired through core needle biopsy (18 G needle). Classical papillary growth pattern can be observed in image (hematoxylin and eosin stain, magnification × 20). D. Malignant nodule was ablated by ultrasound-guided RFA. Longitudinal ultrasound image showing placement of electrode at target nodule with 1 cm active tip. RFA-induced transient hyperechoic zone covered entire nodule and needle passage was also ablated when ablation electrode was retracted. RFA = radiofrequency ablation Fig. 1. Ultrasound image of thyroid before RFA.A. Transverse ultrasound image. B. Longitudinal ultrasound image. Solid nodule (0.9 × 0.7 × 0.5 cm) with marked hypoechogenicty, microcalcification, and spiculated margin in right thyroid gland. No enlarged lymph nodes were detected. C. Pathological images of thyroid nodule acquired through core needle biopsy (18 G needle). . . . Korean J Radiol. 2016 Jul-Aug;17(4):554-557. http://dx.doi.org/10.3348/kjr.2016.17.4.554