Surgical and Pathological Changes after Radiofrequency Ablation of Thyroid Nodules

Figure 3

Representative images of a follicular neoplasm of uncertain malignant potential previously treated with RFA. (a) The lower magnification (0.6x) picture shows central scattered areas of hyaline sclerosis and scarring due to RFA, which do not affect the capsule. (b) The higher magnification (40x) picture shows signet ring cells, random nuclear atypia, and clearing cell changes.