TIRADS categories:

• TR1 Benign (0 pts)

• TR2 Not Suspicious (2 pts)

• TR3 Mildly Suspicious (3 pts)

• TR4 Moderately Suspicious (4-6 pts)

• TR5 Highly Suspicious (≥7 pts)

FNA no more than 2 nodules with the highest TIRADS point scores at a time.

Follow no more than 4 nodules with the highest TIRADS point scores at a time.