Ultrasound: Thyroid

Alternative Names: Thyroid ultrasound

A thyroid ultrasound is used to examine the thyroid gland (a gland in the front of the neck) for causes of swelling, lumps, or cysts. Ultrasound is a technique that uses sound waves, which bounce off body structures, to create images on a screen. A simple jelly is placed on your skin and a rounded device (probe), placed against the skin of your neck, helps to create the images.

What is it?
Thyroid ultrasound is an examination of the thyroid gland (a gland in the front of the neck) using an ultrasound machine. Ultrasound refers to the use of sound waves, which bounce off (echo) body structures in a manner that can be used to generate images on a screen.

It can be done wherever there is an ultrasound machine and somebody who is trained to use it, but it is most commonly performed in a radiology facility. It takes about 30 minutes to complete.

Why is it done?
Thyroid ultrasound is used to examine the thyroid gland. It is usually performed when a swelling, lump, or cyst has been noted and it is important to determine its nature, as well as whether or not it may be malignant (cancerous).

What happens?

Before – how to prepare
No special preparation is needed for this test.

During – how the test is done
You lie on an examination couch. Some simple jelly (which may be cold) is placed on your skin and the ultrasound probe is then moved over your neck to create the images.

After the test
The result will be available almost immediately.

Risks and Compilations
There are no risks associated with this procedure.

Special Issues
The value of this examination is dependant on the skill of the person performing it. It is best to consult an experienced radiologist or doctor.

Short Description
A thyroid ultrasound is used to examine the thyroid gland (a gland in the front of the neck) for causes of swelling, lumps, or cysts.

Keywords
thyroid ultrasound, ultrasound