Related Experiment Video
Updated: Jun 18, 2026

Mouse Models of Epididymitis Induced by Pathogen-Associated Molecular Patterns
Published on: December 12, 2025
[Testicular tumor presenting as acute scrotum with infection caused by gas-producing bacteria]
Gou Kaneko1, Hiroshi Shirakawa, Norihide Kozakai
1The Department of Urology, Kawasaki Municipal Hospital, Japan.
Abstract:
A 46-year-old male patient visited our hospital with the chief complaint of a right scrotal swelling and pain. The enlarged scrotum was 8 cm in diameter with redness of the skin of the right scrotum. There was a firm mass in the scrotum with marked tenderness. The patient's body temperature was 38.0C, and blood tests showed increased inflammatory markers. The results of computed tomography and magnetic resonance imaging showed that the enlarged scrotum was filled with gas and there was a mass partially composed of fat inside it. The patient was treated with antibiotics, but the fever persisted and the inflammatory markers further increased. The size of the right scrotum gradually increased. A right high inguinal orchiectomy was performed to control the inflammation and makea diagnosis. Thehistopathological diagnosis was necrosis of seminoma, and culture of thene crotic tissuewas positivefor Clostridium. Thepre sent caseappe ars to bethefirst caseof a testicular tumor associated with acute scrotum due to tumor growth, necrosis and infection caused by gas-producing bacteria.
Related Concept Videos
Disorders of the Male Reproductive System
Prostate disorders are another major concern. These conditions can impair urinary flow due to the prostate's location around the urethra. Symptoms...
Testes: Gross Anatomy
Each testis is surrounded by the tunica albuginea, a dense connective tissue layer that provides structural support and protection. This layer is covered by an outer serous membrane called the tunica vaginalis, which helps reduce friction...
Testes: Histology
The spermatogenic cells, responsible for producing sperm, are...
Sexually Transmitted Infections
Acute Pyelonephritis I: Introduction
Urinary Tract Infection II: Pathophysiology
