Chapter 12 – Cyst, Colloid nodule

Cyst, Colloid nodule

10.1.13 Transverse scan – CC – right lobe with normal heterogeneous volume, isoechoic. It has a large oval anechoic cyst that compresses part of the right thyroid gland, well-defined, without calcifications or ring down artifacts.

10.1.15 Longitudinal scan – CC – right lobe with normal heterogeneous volume, isoechoic. It has a large oval anechoic cyst that compresses the lower floor of the right thyroid lobe, well-defined, without vascular signal.

10.1.17 Transverse scan - CC – Right lobe has normal heterogeneous volume, isoechoic with small anechoic cysts well-defined with ring down artifacts. 10.1.14 Longitudinal scan – CC – right lobe with normal heterogeneous volume, isoechoic. It has a large oval anechoic cyst that compresses the lower floor of the right thyroid lobe, well-defined, without calcifications or ring down artifacts.

10.1.16 Longitudinal scan - CC - Left lobe has normal cranio-caudal diameter, heterogeneous with small anechoic cysts well-defined and no vascular signal in color Doppler.

10.1.18 Transverse scan - CC – Right lobe has normal heterogeneous volume, isoechoic with small anechoic cysts well-defined with ring down artifacts and no vascular signal in color Doppler.

12.1.19 Transverse scan – CC – Left lobe with normal heterogeneous volume, isoechoic. It has a large round anechoic cyst that compresses part of the left thyroid gland, well-defined, without calcifications or ring down artifacts.

12.1.21 Longitudinal scan - CC - Left lobe has normal cranio-caudal diameter, heterogeneous, isoechoic with a round anechoic cysts well-defined without calcifications, and ring down artifacts.

12.1.23 Transverse scan - CC – Left lobe has normal heterogeneous volume, isoechoic with small anechoic cysts well-defined which contains a precipitated hyperechoic material peripherally bordered by a thickened capsule with increased vascularization. 12.1.20 Transverse scan – CC – Left lobe with normal heterogeneous volume, isoechoic has a large round anechoic cyst that compresses part of the left thyroid gland, well-defined, without calcifications, ring down artifacts and vascular signal on Color Doppler.

12.1.22 Longitudinal scan - CC - Left lobe has normal cranio-caudal diameter, heterogeneous with a round anechoic cysts well-defined presenting soft stiffness of the entire parenchyma and partial lack of signal and bordered with soft stiffness around the colloid cyst which is a typical pattern in Strain Elastography.

12.1.24 Transverse scan - CC – Left lobe has normal heterogeneous volume, isoechoic with small anechoic cysts well-defined which contains a precipitated hyperechoic material peripherally bordered by a thickened capsule with increased vascularization on Power Doppler.

12.2.1 Transverse scan – SC –Left lobe with normal heterogeneous volume, isoechoic which contains a spongiform benign nodule with internal microcystic appearance involving more than 50% of the lesion. The nodule has a classic spongiform shape with a honeycomb pattern.

12.2.3 Longitudinal scan - SC –Left lobe with normal heterogeneous volume, isoechoic which contains a spongiform benign nodule with internal microcystic appearance with a honeycomb pattern, well-defined, and vascularized centrally and peripherally on color Doppler.

12.2.5 Transverse scan - SC –Right lobe with normal heterogeneous volume, isoechoic which contains a spongiform benign nodule with internal microcystic appearance with a honeycomb pattern, well-defined, and vascularized peripherally on color Doppler. 12.2.2 Transverse scan – SC –Left lobe with normal heterogeneous volume, isoechoic which contains a spongiform benign nodule with internal microcystic appearance with a honeycomb pattern vascularized centrally and peripherally on Power Doppler.

12.2.4 Longitudinal scan - SC –Left lobe with normal heterogeneous volume, isoechoic which contains a spongiform benign nodule with internal microcystic appearance presenting soft stiffness of the entire spongiform cyst, and bordered peripherally with hard stiffness around the nodule which is a typical pattern on Strain Elastography.

12.2.6 Longitudinal scan - CC - Right lobe with normal heterogeneous volume, isoechoic which contains a spongiform benign nodule with internal microcystic appearance with a honeycomb pattern, well-defined, located in the middle floor.

10.2.7 Transverse scan - SC –Right lobe with normal heterogeneous volume, isoechoic which contains a spongiform benign nodule with internal microcystic appearance with a honeycomb pattern, well-defined, and vascularized peripherally on Power Doppler.

10.2.9 Transverse scan – SC –Right lobe with normal heterogeneous volume, isoechoic which contains a spongiform benign nodule with internal microcystic appearance with a honeycomb pattern, well-defined, and vascularized peripherally on Color Doppler.

10.2.11 Transverse scan - CC – left lobe has heterogenous increased volume, containing a very large, well-defined colloidal cyst containing a peripheral hyperechoic precipitate, with ring down artifact and compressing the surrounding parenchyma. 10.2.8 Longitudinal scan - SC –Left lobe with normal heterogeneous volume, isoechoic which contains a spongiform cyst presenting soft stiffness of the entire nodule, and bordered peripherally with hard stiffness which is a typical pattern on Strain Elastography with SR 0.51

10.2.10 Transverse scan - SC – right lobe with normal heterogeneous volume, isoechoic which contains a spongiform benign nodule presenting soft stiffness and bordered peripherally with hard stiffness which is a typical pattern on Strain Elastography.

10.2.12 Transverse scan - CC – left lobe has heterogenous increased volume, containing a very large colloidal cyst containing a peripheral hyperechoic precipitate, compressing the surrounding parenchyma inside with soft stiffness and peripheral hard stiffness all around and at the level of the precipitated colloid.

Chapter 13 – Benign nodules: Hyperplastic nodules, Follicular adenomas, Hashimoto thyroiditis nodules, Subacute thyroiditis nodules

13.1.1 Transverse scan – Follicular adenoma – right lobe with normal heterogeneous volume, isoechoic. It has a homogeneous, hypoechoic solid nodule, with well-defined regular margins, more wider than tall.

13.1.3 Transverse scan – Follicular adenoma – right lobe with normal heterogeneous volume, isoechoic. It has a homogeneous, hypoechoic solid nodule, with well-defined regular margins, more wider than tall, and no vascular signal in color Doppler.

13.1.5 Transverse scan – Follicular adenoma – left lobe with normal heterogeneous volume, isoechoic. It has a homogeneous, hypoechoic solid nodule, with well-defined regular margins, more wider than tall, and no vascular signal in color Doppler. 13.1.2 Longitudinal scan – Follicular adenoma – right lobe with normal heterogeneous volume, isoechoic. It has a homogeneous, hypoechoic solid nodule, with well-defined margins, with thin halo, more „wider than tall” shape and nonvascularized on color Doppler.

13.1.4 Longitudinal scan - Follicular adenoma –Right lobe with normal heterogeneous volume, isoechoic presenting homogeneous soft stiffness of the entire hypoechoic solid nodule, on Strain Elastography with SR 0.26.

13.1.6 Transverse scan - Follicular adenoma – left lobe with normal heterogeneous volume, isoechoic. It has a homogeneous, hypoechoic solid nodule, with welldefined margins, with thin halo, more „wider than tall” shape and nonvascularized on color Doppler.

13.1.7 Longitudinal scan scan - Follicular adenoma – Left lobe has normal heterogeneous volume, isoechoic with small homogeneous, hypoechoic solid nodule, welldefined, with peripheral vascularization type 2 at color Doppler.

13.1.9 Transverse scan – Hyperplastic nodule – left lobe with normal heterogeneous volume, isoechoic. It has a homogeneous, isoechoic solid nodule, more „wider than tall” shape, with well-defined regular margins and thin halo, located laterally in the lower floor.

13.1.11 Transverse scan – Hyperplastic nodule – left lobe with normal heterogeneous volume, isoechoic. It has a homogeneous, isoechoic solid nodule, more „wider than tall” shape, with well-defined regular margins and thin halo, located laterally in the lower floor, with peripheral vascularization (type 2) at color Doppler. 13.1.8 Longitudinal scan - Follicular adenoma – Left lobe has normal heterogeneous volume, isoechoic with small homogeneous, hypoechoic solid nodule, welldefined, with predominance of soft stiffness RAGO 2, SR=1,02 at the Strain Elastography.

13.1.10 Longitudinal scan– Hyperplastic nodule – left lobe with normal heterogeneous volume, isoechoic with a homogeneous, isoechoic solid nodule, with welldefined regular margins, more „wider than tall” shape, located laterally in the lower floor.

13.1.12 Transverse scan – Hyperplastic nodule – Left lobe has normal heterogeneous volume, isoechoic with small homogeneous, isoechoic solid nodule, welldefined, with predominance of soft stiffness RAGO1, SR=0.56 at the Strain Elastography.