Fig. 2
From: A new scoring system for risk stratification of thyroid tumors
Characteristic images of benign, low-risk and malignant thyroid nodules. a and d are the gray-scale and elastography ultrasound images of benign nodule, which do not have malignant features and is scored 0. b and e are the images of low-risk nodule. Hypoechoic, irregular margin, and elasticity score of 3, so the nodule score is 5. c and f show the characteristics of malignant nodule. This nodule was scored 12 with hypoechoic, irregular margin, the maximum diameter was 1 cm, the aspect ratio = 1 and elasticity score of 4