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Related Concept Videos

Urinary Tract Calculi VI: Surgical Management01:25

Urinary Tract Calculi VI: Surgical Management

Procedures for Kidney StonesMedical intervention is necessary when kidney stones or renal calculi are too large to pass spontaneously (typically greater than 5 millimeters) when stones are accompanied by symptomatic infection (such as fever or pyelonephritis), when they impair kidney function, or when they cause persistent symptoms like severe pain, nausea, or urinary retention. Additionally, patients with only one kidney or those who cannot be treated with medical management also require...
Acute Pyelonephritis II: Diagnostic Studies and Management01:28

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Introduction:For diagnosing acute pyelonephritis, a comprehensive patient history is collected to identify symptoms such as dysuria, frequent or urgent urination, flank pain, or costovertebral angle (CVA) tenderness that may suggest a kidney infection.Physical ExaminationDuring the physical examination, CVA tenderness is assessed. This involves gentle percussion over the costovertebral angle, where tenderness often indicates a kidney infection.Diagnostic TestsUrinalysis: Used to identify white...
Acute Pyelonephritis I: Introduction01:27

Acute Pyelonephritis I: Introduction

Pyelonephritis is a bacterial infection that primarily affects the renal parenchyma and collecting system, including the renal pelvis, tubules, and interstitial tissue of one or both kidneys. It can be classified as either acute—a sudden, severe infection—or chronic, which refers to long-term or recurrent kidney infections.The primary cause of acute pyelonephritis (APN) is bacterial infection, with Escherichia coli accounting for approximately 70-80% of cases. Other bacteria, such as Proteus,...
Urinary Tract Calculi II: Pathophysiology and Clinical Manifestations01:26

Urinary Tract Calculi II: Pathophysiology and Clinical Manifestations

Renal calculi, commonly termed kidney stones, are crystalline solid masses that form in the kidneys but can occur at any point within the urinary system, encompassing the kidneys, ureters, bladder, and urethra.The pathophysiology of renal stones involves several key factors: supersaturation of the urine with stone-forming constituents, changes in urine pH, a decrease in urine volume, and the presence of substances that promote or inhibit stone formation.Supersaturation of Urine: This is the...
Esophageal Perforation-I: Introduction01:22

Esophageal Perforation-I: Introduction

Esophageal perforation is a severe medical condition characterized by a breach in the integrity of the esophageal wall. This breach can occur due to various factors such as trauma, medical procedures, or underlying diseases. When the esophageal wall is compromised, it allows food, fluids, and digestive juices into the chest cavity or adjacent structures, leading to potential complications and health risks.
The location of esophageal perforation can vary, occurring anywhere along the esophagus.
Urinary Tract Infection II: Pathophysiology01:25

Urinary Tract Infection II: Pathophysiology

The pathophysiology of urinary tract infections (UTIs) encompasses several progressive stages, beginning with bacterial colonization and culminating in potential systemic complications if untreated. UTIs are primarily initiated by bacteria, such as Escherichia coli, which often originate from the gastrointestinal tract and migrate to the urinary system through the periurethral area. This migration can occur via several routes, including improper hygiene practices, sexual activity, or...

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Updated: Jun 7, 2026

Posterior Approach for Debridement of the Psoas Abscess
06:02

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Published on: March 2, 2020

Psoas abscess from ureteric stone perforation.

Gavin M Langille1, Richard W Norman

  • 1Department of Urology, Dalhousie University, Halifax, Nova Scotia, Canada.

The Canadian Journal of Urology
|October 27, 2010
PubMed
Summary
This summary is machine-generated.

A rare ureteric stone complication caused a psoas abscess, requiring kidney removal. Prompt diagnosis and intervention are crucial for managing such severe urinary tract infections and abscesses.

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Area of Science:

  • Urology
  • Nephrology
  • Infectious Diseases

Background:

  • Impacted ureteric stones can lead to rare but severe complications.
  • Psoas abscess formation is an uncommon sequela of ureteric obstruction.

Observation:

  • A patient presented with a psoas abscess secondary to an eroded ureteric stone.
  • Initial management with ureteric stent placement and abscess drainage proved insufficient.

Findings:

  • The impacted stone caused ureteric wall erosion and subsequent psoas abscess.
  • Renal scan indicated poor left kidney function.
  • Nephrectomy was performed due to acute suppurative pyelonephritis and nephrolithiasis.

Implications:

  • This case highlights the importance of considering rare complications of ureteric stones.
  • Aggressive management may be necessary for refractory cases.
  • Early recognition and treatment are vital to prevent renal damage and preserve kidney function.