U l t r a s o u n d     c r i t e r i a
Sex — F. Age – 45. Weight – 87 kg. Height – 164 cm.

T h y r o i d    g l a n d

Anatomical structure of the thyroid gland and larynx.
Thyroid gland has two lobes connected by the isthmus.
Larynx has a female type of structure.
Thyroid cartilage angle is 115 degrees.
Position is changed.
Upper poles mount to the lower third of the lower horns of the thyroid cartilage.
Lower poles mount to the 3rd-4th tracheal cartilages.
Upper border of the isthmus mounts to the cricothyroid ligament.
Shape.
Anterior surface of the thyroid is concave.
Lateral border is S-shaped.
Posterior surface is straight.
Medial border repeats the shape of the trachea and esophagus.
S i z e    i s    i n c r e a s e d.
Height of the thyroid lobe - 34 mm. Width - 37 mm.
Depth - 11 mm. Depth of the isthmus - 2 mm.
Volume of the thyroid gland (according to the tomographic findings) - 2,9 cm3.
Echostructure is microgranular, homogenous.

 
Integrated
optical density —

0.3753±0.1293  
 
 
S u r r o u n d i n g    o r g a n s    a n d    t i s s u e s
Trachea.
At the level of the cricotracheal ligament: width - 19 mm, depth - 19 mm.
At the level of 3rd-4th cartilages: width - 19 mm, depth - 15 mm.
At the level of the jugular notch: width - 19 mm, depth - 16 mm.
Esophagus.
At the level of 3rd-4th tracheal cartilages: width - 7 mm, depth - 6 mm.
Muscles of the neck.
Anterior group of muscles
- sternothyroid and sternohyoid muscles.
Total depth - 8 mm.
Posterior group of muscles - long muscle of the head, long muscle of the neck,
anterior scalene muscle, middle scalene muscle, posterior scalene muscle.
Total depth - 8 mm.
Fascia cervicalis - normal.
Greater vessels of the neck - the common carotid artery and internal jugular vein - normal.



Fig.48.1. Autoimmune thyroiditis and atrophy of the thyroid gland. Echograms of the thyroid gland and their she-matic representations. Scale 1:1. Fig.48.1 includes sections No. 3, 4, 5, 6, 7, 8. The section number is given in the top right corner of the schematic representation.








Fig.48.2. Autoimmune thyroiditis and atrophy of the thyroid gland. Reconstructed two-dimensional images of the thyroid gland. A - Right lateral view - projection on the sagittal plane. B - Anterior view - projection on the frontal plane. Scale 1:1. Horizontal lines in fig.48.2.B show the levels of transverse section. Numbers in rectangular frame indi-cate the sections included in fig.48.1. Signs. 1 - musculus constrictor pharyngis inferior, 2 - cartilago thyroidea, 3 - cartilago cricoidea, 4 - glandula thyroidea, lobus dexter, 5 - oesophagus, 6 - vertebra, 7 - trachea, 8 - sagittal line.