U l t r a s o u n d      c r i t e r i a
Sex —F. Age – 25. Weight – 75 kg.& Height –179 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.
Thyroid gland is normally located - the upper poles
mount to the middle part of the thyroid cartilage lamina.
Lower poles are at the level of the 5th tracheal cartilage.
Upper border of the isthmus begins at the level
of the cricotracheal ligament.
Shape is deformed due to a space-occupying mass.

S i z e    i s    i n c r e a s e d
Height of the thyroid lobe - 75 mm. Width - 76 mm.
Depth - 38 mm. Depth of the isthmus - 13 mm.
Volume of the thyroid gland (according to the tomographic findings) - 26,3 cm3.
Volume of the space-occupying mass
(according to the tomographic findings) - 18,7 cm3.
Echostructure is microgranular, homogenous.

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 is deformed.
Esophagus is deformed.
Anterior group of muscles - sternothyroid and sternohyoid muscles.
Total depth - 12 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.
Greater vessels of the neck - the common carotid artery and internal jugular vein.
The left group of the vessels is displaced to outside.



Fig.49.1. Enlargement of the thyroid gland due to a space-occupying mass. Echograms of the thyroid gland and their shematic representations. Scale 1:75. Fig.49.1 includes sections No. 3, 6, 8, 10, 11, 13. The section number is given in the top right corner of the schematic representation.








Fig.49.2. Enlargement of the thyroid gland due to a space-occupying mass. Reconstructed two-dimensio-nal images of the thyroid gland. A - Right lateral view - projection on the sagittal plane. B - Anterior view - projection on the fron-tal plane. Scale 1:1. Horizontal lines in fig.49.2.B show the levels of transverse section. Numbers in rectangular frame indicate the sections included in fig.49.1. Signs. 1 - musculus constrictor pharyngis inferior, 2 - cartilago thyroidea, 3 - cartilago cricoidea, 4 - glandula thyroidea, lobus dexter, 5 - oesophagus, 6 - vertebra, 7 - trachea, 8 - space-occupying mass.