Figure 2

The TERT promoter mutated follicular thyroid carcinomas. Transverse ultrasound images show solid hypoechoic nodules with markedly decreased echogenicity (A), punctate echogenic foci (solid arrow) (B), or irregular margins (open arrow) (C). They were categorized as K-TIRADS/ACR-TIRADS category 4 (A and B), and K-TIRADS/ACR-TIRADS category 5 (C).