Reperfusion testicular hyperemia post torsion correction

Case contributed by Dr Chris O'Donnell


Presented with acute left testicular pain. Had orchidopexy. US to assess for testicular viability.

Patient Data

Age: 13
Gender: Male

Post orchidopexy examination

Heterogeneous testicular parenchyma on the left with increased blood flow on color Doppler (of low resistive index).  Associated scrotal swelling. This is assymetrical when compared with the right testis.


Examination performed a day earlier (prior to surgery)

Heterogeneous left testis with no flow on color Doppler as compared with the right. This is indicative of torsion.

Case Discussion

After reperfusion the testis will show hyperemia for some time due to build up of lactate and other ischemic factors leading to vasodilatation. This can be a trap in boys with torsion as the testis can spontaneously untort showing increased blood flow on ultrasound, thus being misinterpreted by the inexperienced operator as orchitis (obscuring the true and much more substantial torsion diagnosis).

In this case the hyperemia has occurred post surgical repair with persistent swelling of the parenchyma causing the heterogeneity.

PlayAdd to Share

Case information

rID: 35247
Published: 29th Mar 2015
Last edited: 14th Aug 2019
System: Urogenital
Inclusion in quiz mode: Included

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.