Thyroid Gland

Fig. 7.1

Hyperplastic follicular lesion histologically proven. (a) At baseline ultrasound the lesion appears iso-hypoechoic with peripheral halo sign. (b1, b2) At power Doppler and at Advanced Dynamic Flow™ (ADF), the nodule shows pattern III. (c) Qualitative evaluation with SE shows score 1 by Itoh et al. and Rubaltelli et al. (d) At semiquantitative evaluation, nodule appears benign with a strain ratio of 1.05 under the cutoff value of 2.0

Fig. 7.2

Benign nodule at FNAC. Isoechoic nodule with halo sign which shows score 2 at qualitative evaluation

Fig. 7.3

Papillary carcinoma histologically proven. (a1, a2) Hypoechoic nodule with irregular margins and pattern I at color Doppler evaluation. (b) At qualitative evaluation the nodule appears hard

Fig. 7.4

Anaplastic carcinoma (histologically proven). (a) B-mode of the tumor revealed diffuse infiltration with cervical lymphadenopathy. (b) Elastography revealed stiff tissue

Fig. 7.5

Papillary carcinoma histologically proven. (a) Baseline ultrasound shows an isoechoic nodule with a partially continuous halo sign and pattern III at SMI evaluation. (b) At shear wave elastography, the lesion appears hard with high elasticity values. It was a carcinoma histologically proven

Fig. 7.6

Papillary carcinoma histologically proven. (a) Iso-hypoechoic nodule with high peri- and intranodular vascularization (pattern III). (b) At SSI the lesion presents mixed stiffness but high elasticity values expressed in m/s and k/Pa

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