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You are here : AllRefer.com > Health > Tests & Exams > Thyroid ultrasound

Thyroid ultrasound

Alternate Names : Ultrasound - thyroid, Thyroid sonogram, Thyroid echogram


Definition

A thyroid ultrasound is an imaging method used to see the thyroid -- a gland in the neck that regulates metabolism.

Why is the Test Performed?

A thyroid ultrasound is usually done when you have a growth on your thyroid gland. The exam can help tell the difference between a sac containing fluid (cyst) and abnormal tissue that may or may not be cancerous (a tumor).

How is the Test Performed?

Ultrasound is a painless method that uses sound waves to create images of the inside of the body. The test is usually done in the ultrasound or radiology department.

You will lie with your neck extended beyond its usual limit (hyperextended). The ultrasound technician will place a lubricating gel onto your neck. Next, the technician will move a wand, called a transducer, over the area.

The transducer gives off sound waves. The sound waves go through the body and bounce off the area being studied (in this case, the thyroid gland). A computer looks at the pattern that the sound waves create when bouncing back, and creates an image.

How to Prepare for the Test?

No special preparation is necessary for this test.

How will the Test Feel?

You should feel very little discomfort with this test. The gel may be cold.

Pictures & Images

Thyroid ultrasound
Thyroid ultrasound

       
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Review Date : 4/10/2008
Reviewed By : Benjamin Taragin, MD, Department of Radiology, Montefiore Medical Center, Bronx, NY. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.



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