Related Experiment Video
Updated: Aug 1, 2025

Intrarenal Injection of Escherichia coli in a Rat Model of Pyelonephritis
Published on: July 18, 2017
Acute obstructive pyelonephritis due to pyosalpinx: a case report
Kays Chaker1, Yassine Ouanes2, Eya Azouz3
1Department of Urology, La Rabta Hospital, University of TUNIS El Manar, Tunis, Tunisia. chakerkays@gmail.com.
Background:
A pyosalpinx is the acute inflammation of the fallopian tube, which fills up and swells with pus. It commonly results from inadequate or delayed treatment of pelvic inflammatory disease.
Case Presentation:
We report the case of a 54-year-old Africain female patient, who presented with sustained high-grade fever, right flank pain, and severe acute storage low-urinary-tract symptoms. Computed tomography showed signs of acute obstructive pyelonephritis with a right tubular juxtauterine mass with complex internal fluid and thick enhancing walls exerting a mass effect on the right ureter. A drainage of the right excretory cavities by a JJ stent was performed. An ultrasound-guided aspiration of the collection was also performed.
Conclusion:
A pyosalpinx can then exert a mass effect on the excretory cavities, thus causing an acute obstructive pyelonephritis. A double drainage coupled with an effective antibiotic therapy is then necessary.
Related Concept Videos
Acute Pyelonephritis I: Introduction
Acute Pyelonephritis II: Diagnostic Studies and Management
Urinary Tract Infection II: Pathophysiology
Peritoneal Dialysis II: Peritoneal Dialysis Systems and Complications
Imaging Studies V: Intravenous Urography and Retrograde Pyelography
Urinary Tract Calculi V: Nursing Management

