Abstract
Segmental testicular infarction (STI) is a very rare condition, with less than 70 cases reported since 1909. It generally presents with testicular pain and may be confused clinically with testicular torsion and radiologically with testicular cancer. However, it can be managed conservatively, unlike those diagnoses, so in order to avoid unnecessary treatment it should be considered as a differential in presentations of testicular pain. The etiology of STI is most commonly idiopathic (70% of cases), but it is important to rule out underlying infection, clotting disorders or vasculitis. As a result, whenever this diagnosis is made, it is vital to carry out further investigations.
This case concerns a 36-year-old chef, with no significant past medical history, who presented with a 24-hour history of severe testicular pain. Due to the length of time from onset of symptoms, he underwent routine blood tests, urinalysis and an ultrasound rather than proceeding to scrotal exploration. This showed a wedge-shaped hypoechoic area in keeping with segmental infarct. As a result, he was managed conservatively, but subsequently had further specialist blood tests, as well as computed tomography imaging and several interval ultrasounds. No cause was found and after several months, while the hypoechoic area seen on ultrasound was still present, his pain had resolved.
While this a rare cause of testicular pain, it is important to consider it as a diagnosis, as it may avoid an unnecessary operation. Subsequent investigations are complex, so it is important to appreciate their necessity.