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Updated: Feb 21, 2026

Mouse Models of Epididymitis Induced by Pathogen-Associated Molecular Patterns
Published on: December 12, 2025
[Segmental Testicular Infarction in a Patient with Epididymitis]
Tatsuro Ishikawa1, Koji Izumi1, Takuya Kondo1
1The Department of Urology, Yokohama Municipal Hospital.
Abstract:
Testicular nodules are occasionally palpable in patients with acute epididymitis. In these patients, we need to rule out testicular tumors. Advancement in imaging technology such as doppler ultrasound or magnetic resonance imaging (MRI) has enabled us to distinguish segmental testicular infarction from testicular tumor and refrain from orchiectomy. However, careful diagnosis is necessary and we should not hesitate to perform orchiectomy in case testicular tumor is not ruled out. Since segmental testicular infarction in the presence of epididymitis may occur, we should consider the disease in a case of hard testis in the presence of epididymitis. Herein we report a rare case of segmental testicular infarction after epididymitis, in which testicular tumor was difficult to rule out.
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