Figure 1 Patient was a 46-year-old woman with diagnosis of papillary thyroid carcinoma on the left side via fine needle aspiration, who underwent ultrasound-guided microwave ablation (MWA) treatment. (A) Preoperative localization to assess the relationship between the tumor and surrounding vascular structures. (B) Ultrasound-guided injection of 10 mL of local anesthetic outside the thyroid capsule to create a safety margin. (C) Insertion of the ablation needle into the tumor for MWA treatment at 30 W power. (D) Six-month postoperative follow-up with thyroid ultrasound showing no abnormal echoes, after injection of 2.0 mL SonoVue into a superficial vein; ultrasound shows no significant abnormal enhancement in the original tumor area, with perfusion patterns similar to that of the surrounding thyroid tissue. The software WPS Office, 12.1.0.21171, Kingsoft Corp was used for creation of figures.