What is the role of imaging studies in the diagnosis of orchitis?

Updated: Aug 16, 2017
  • Author: Nataisia Terry, MD; Chief Editor: Erik D Schraga, MD  more...
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Answer

Color Doppler ultrasonography has become the imaging test of choice for the evaluation of acute testicular pain. [1, 23, 24]

Because orchitis often presents as acute edema and pain of the testicle, ruling out testicular torsion is critical. A finding of a normal-sized testicle with decreased flow is suggestive of torsion, whereas a finding of an enlarged epididymis with thickening and increased flow is more suggestive of epididymitis/orchitis.

Often, the history and physical examination are enough to make the diagnosis; however, as an adjunct, ultrasonography is highly sensitive for ruling out testicular torsion and for demonstrating inflammation of the testis or the epididymis. [2, 26]


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