Ultrasound-Guided Percutaneous Microwave Ablation for Solid Benign Thyroid Nodules: Comparison of MWA versus Control Group

Figure 1

A 21-year-old female had a solid nodule in the left lobe of her thyroid gland. (a) The transverse of US examination showed a mainly solid nodule (arrow) which caused cosmetic problem in the superficial layer, and the volume of index nodule was approximately 5.40 ml (2.72 × 1.56 × 2.43 cm). (b) The long axis of index nodule. (c) At 1-month follow-up, US examination showed a little reduction in volume, and the volume was approximately 4.79 ml. (d) Three months after microwave ablation, the volume of the nodule significantly decreased to 3.75 ml. (e) Six months after the procedure, the index nodule shrunk to a volume of 0.96 ml. (f) At 1-year follow-up, the volume of the nodule greatly decreased to 0.08 ml, the VRR was 98.51%, and cosmetic grade significantly improved.

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