Fig. 4.

Baseline US shows a non-well marginated, prevalently hypoechoic nodule (a) which at color-Doppler presented perilesional with some tiny intralesional vascular signs and at ARFI 2.59 and 3.19 m/s of shear wave velocity, respectively, for operator 1 (c) and operator 2 (d). At FNAC the lesion was classified as Thy 3; histological examination after thyroidectomy demonstrated that the nodule was a papillary carcinoma