Difference between revisions of "Testicular ultrasound"

(Findings and DDX)
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[[Category: GU]]
[[Category: GU]]
[[Category: Rads]]
[[Category: Rads]]

Revision as of 15:47, 1 November 2015


  • Testicle - ~2 to 3 cm in width and 3 to 5 cm in length
  • Epididymis - along the posterolateral aspect of each testis
  • Vas Deferens
  • Spermatic cord
  • Median Raphe


  • Linear Transducer
  • Scanned in longitudinal and transverse axis
  • First the unaffected hemiscrotum
  • Coronal scan showing both testicles side by side (Buddy View) should be performed to identify differences in size and echogenicity, and vascularity
  • Power Doppler examination on unaffected side for calibration of machine


  • Hyperemia: inflammation and demonstrates increased flow (lots of color) compared to contralateral side
    • Think -itis and detorsed testicle

Findings and DDX

  • Epididymitis - enlarged epididymis with decreased echogenicity
  • Orchitis - enlarged testicle with heterogeneous echogenicity with increased blood flow
  • Hydrocele - Abnormal collection of fluid in the space between the visceral and parietal layers of the tunica vaginalisin anterolateral portions
  • Varicocele - left side, multiple anechoic serpiginous tubular or curvilinear structures of varying sizes (larger than 2 mm in diameter)
  • Testicular torsion - Power Doppler with absent blood flow in the affected testicle; patient can present early and still have flow
  • Torsion of testicular appendage
  • Testicular trauma
  • Herniation of abdominal contents into the scrotum - peristalsis of bowel

See Also


  • Sonosite - Last Accessed 12/30/14