Scrotal ultrasound
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Scrotal ultrasound

Definition

Scrotal ultrasound is an imaging test that examines the scrotum, the flesh-covered sac that hangs between the legs at the base of the penis.

The testicles are the male reproductive organs that produce sperm and the hormone testosterone. They are located in the scrotum, along with other small organs, blood vessels, and a small tube called the vas deferens.

Alternative Names

Testicular ultrasound; Testicular sonogram

How the Test is Performed

You lie on your back with your legs spread. The health care provider drapes a cloth or applies wide strips of adhesive tape across your thighs under the scrotum. The scrotal sac will be slightly raised, with the testicles lying side by side.

A clear gel is applied to the scrotal sac to help transmit the sound waves. A handheld probe (the ultrasound transducer) is then moved over the scrotum. The ultrasound machine sends out high-frequency sound waves, which reflect off areas in the scrotum to create a picture.

How to Prepare for the Test

No special preparation is needed for this test.

How the Test Will Feel

There is little discomfort. The conducting gel may feel slightly cold and wet.

Why the Test is Performed

A testicle ultrasound is done to:

  • Help determine why one or both testicles have become larger
  • Find the reason for pain in the testicles
  • Show how blood flows through the testicles

Normal Results

The testicles and other areas in the scrotum appear normal.

What Abnormal Results Mean

Possible causes of abnormal results include:

Risks

There are no known risks. You will not be exposed to radiation with this test.

Considerations

In certain cases, Doppler ultrasound may help identify blood flow inside the scrotum. For example, Doppler ultrasound is very helpful in cases of testicular torsion, because blood flow to the twisted testicle may be reduced.

References

Berman L. The male reproductive system. In: Adam A, Dixon AK, eds. Grainger & Allison's Diagnostic Radiology: A Textbook of Medical Imaging. 5th ed. New York, NY: Churchill Livingstone; 2008:chap 44.



Review Date: 7/11/2012
Reviewed By: Ken Levin, MD, private practice specializing in Radiology and Nuclear Medicine, Allentown, PA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M. Health Solutions, Ebix, Inc.
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
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