Fig. 2From: Efficacy and safety of radiofrequency ablation for benign thyroid nodules in patients with previous thyroid lobectomyUS images of a postoperative thyroid nodule. a The transverse US showed a postoperative nodule at the left lobe. Before RFA, the initial volume was 11.95Â ml. b At 3Â months after RFA, the volume of nodule was 5.43Â ml. C. At 12Â months after RFA, the volume shrunk to 2.92Â mlBack to article page