How does a testicular ultrasound help diagnose urological conditions and detect cancer early?
Written in association with:Testicular ultrasound, also known as a scrotal ultrasound, is a safe and non-invasive diagnostic tool frequently used to assess issues related to the testicles and surrounding tissues. Often recommended for patients experiencing pain, swelling, or a lump in the testicular area, this imaging method provides a clear look at testicular structures and can help diagnose a range of urological conditions, as well as detect early signs of testicular cancer.
Revered consultant radiologist Dr Sharan Wadhwani explains everything you need to know about testicular ultrasound.
What is a testicular ultrasound?
A testicular ultrasound uses high-frequency sound waves to produce images of the testicles and adjacent tissues. Unlike imaging techniques such as X-rays or CT scans, an ultrasound doesn’t use radiation, making it safe for repeated use if necessary. During the procedure, a gel is applied to the scrotal area to improve contact between the skin and the ultrasound probe, which the technician then moves over the area. The process is painless and creates live images, allowing the doctor to examine the tissues, blood vessels, and epididymis (the tube storing sperm at the back of each testicle).
How does testicular ultrasound diagnose urological conditions?
Ultrasound is a crucial tool for diagnosing a variety of urological conditions that may cause testicular discomfort, swelling, or unusual lumps. Common conditions identified with testicular ultrasound include:
- Epididymitis and orchitis: Inflammation of the epididymis (epididymitis) or testicle (orchitis) often results from infections and causes pain and swelling. Ultrasound reveals inflammation by showing increased blood flow in the affected area.
- Hydrocele and varicocele: These are fluid accumulations; a hydrocele is fluid around the testicle, while a varicocele involves enlarged veins in the scrotum. Both conditions can cause a feeling of heaviness, and ultrasound can clearly differentiate between the two.
- Testicular torsion: This urgent condition occurs when the spermatic cord twists, cutting off blood flow. Testicular torsion is extremely painful and, without prompt treatment, can lead to testicular damage or loss. Ultrasound can assess blood flow quickly, confirming torsion and enabling rapid intervention.
Can testicular ultrasound detect early cancer?
One of the most important roles of testicular ultrasound is detecting potential cancerous growths in the testicles at an early stage. Testicular cancer most commonly affects men aged 15-35 but can occur at any age. Ultrasound is especially useful in distinguishing between benign (non-cancerous) and malignant (cancerous) masses.
When a lump or abnormality is found, ultrasound helps determine its nature, including details like its size, shape, and consistency. For instance:
- Solid vs. cystic masses: Cancerous tumours are usually solid, while benign cysts contain fluid. Ultrasound can identify whether a mass is solid or cystic, helping doctors decide on the best next steps.
- Microlithiasis: Small calcium deposits in the testicles, known as microlithiasis, appear as bright spots on ultrasound. While usually harmless, they can increase the risk of testicular cancer, sometimes warranting regular monitoring.
Why may my doctor recommend a testicular ultrasound?
Doctors may recommend a testicular ultrasound if you experience pain, swelling, a lump, or any noticeable changes in the appearance or sensation of your testicles. Even without symptoms, men with a family history of testicular cancer or certain genetic factors may have periodic ultrasounds as a preventive measure.
Early detection through ultrasound greatly improves outcomes for testicular cancer. Identifying a malignant growth early allows for more effective treatment with less invasive procedures. Regular ultrasound monitoring can also track conditions like varicocele or hydrocele to prevent complications.
Is preparation needed for a testicular ultrasound?
Testicular ultrasound generally requires minimal preparation, with most patients able to resume regular activities immediately. Your healthcare provider will advise you on any specific steps before the procedure, which are usually simple and straightforward.
If you would like to book a consultation with Dr Wadhwani, simply visit his Top Doctors profile today.
