Thyroid nodule: score and summation of the predictor

Benign

Low malignancy probability

Moderate malignancy probability

High malignancy probability

Hypoechoic

1

0 - 2

3

4 - 6

7 or more

Predominantly solid

2

Irregular borders

2

Shape taller than wide

2

Microcalcifications

2

Diameter equal to or greater than 1.5 cm

1

Malignant results

1.9%

8.7%

13.6%

75.7%

Recommended action

Habitual follow up

Active vigilance

Recommended FNAB

Mandatory FNAB