Related Experiment Video
Updated: May 3, 2026
06:37
An Immature Murine Model of Reversible Unilateral Ureteral Obstruction
Published on: April 4, 2025
1.0K
Ureteral obstruction caused by schistosomiasis
Th Vancauwenberghe1, M Oyaert2, J L Termote3
1Department of Radiology and Imaging, H. H. Ziekenhuis, Lier, Belgium. thomas.vancauwenberghe@student.kuleuven.be
Summary
A rare case of obstructive uropathy was caused by Schistosoma haematobium infection, mimicking cancer. This highlights the need to consider parasitic infections in differential diagnoses for urinary tract obstruction, especially in travelers.
Area of Science:
- Urology
- Parasitology
- Medical Imaging
Background:
- Schistosomiasis is a parasitic disease caused by flatworms of the genus Schistosoma.
- Obstructive uropathy can result from various conditions, including malignancy and infections.
Observation:
- A 66-year-old female presented with hydro-ureteronephrosis.
- Initial imaging (CT) and biochemistry suggested transitional cell carcinoma of the left proximal ureter.
Findings:
- Histopathological examination revealed Schistosoma haematobium eggs, not cancer.
- The cause of the obstructive uropathy was confirmed as schistosomiasis.
Implications:
- This case underscores the importance of considering infectious etiologies in obstructive uropathy.
- Differential diagnosis for urinary tract obstruction should include schistosomiasis, particularly in patients with travel history to endemic areas.
- Early identification of parasitic infections can prevent unnecessary surgical interventions.
Related Concept Videos
01:20Disorders of the Urinary System
2.2K
The urinary system is responsible for eliminating waste and excess fluids from the body. However, disorders of the urinary system can arise due to various reasons like infections, stress, age, congenital abnormalities, and lifestyle.
Urinary tract infections (UTIs) are one of the most common urinary system disorders. They are caused by bacteria that enter the urethra and can spread to the bladder resulting in cystitis. Pyelonephritis is the result of a UTI that has ascended to the level of the...
Urinary tract infections (UTIs) are one of the most common urinary system disorders. They are caused by bacteria that enter the urethra and can spread to the bladder resulting in cystitis. Pyelonephritis is the result of a UTI that has ascended to the level of the...
2.2K
01:11Pyloric Obstruction
40
Pyloric obstruction, also referred to as gastric outlet obstruction, is a condition characterized by narrowing or blockage at the pylorus—the muscular valve regulating the flow of stomach contents into the duodenum. When this passage becomes impaired, the stomach cannot effectively empty its contents into the small intestine. This disruption leads to a range of gastrointestinal symptoms, including early satiety, bloating, epigastric pain, postprandial nausea, persistent vomiting, and...
40
01:29Intestinal Obstruction I: Introduction
51
Intestinal obstruction is a partial or complete blockage of the small or large intestine that disrupts the normal flow of intestinal contents through the lumen. This interruption impairs digestion, absorption, and fluid balance, and may lead to serious complications if not treated promptly.Mechanical ObstructionMechanical obstruction occurs when a physical blockage prevents intestinal contents from passing, arising from within the lumen or the bowel wall, or from external compression.Adhesions,...
51
01:26Urinary Tract Calculi II: Pathophysiology and Clinical Manifestations
860
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...
860
01:29Acute Kidney Injury II: Pathophysiology
2.3K
Acute kidney injury (AKI) causes are categorized into three primary categories based on the location of the injury: prerenal, intrarenal (or intrinsic), and postrenal causes. This classification guides clinical management and illustrates how different pathways can impair kidney function.Etiology and Pathophysiology of Acute Kidney Injury1. Prerenal causesEtiology: Prerenal Acute Kidney Injury, the most common type, occurs when reduced blood flow to the kidneys decreases filtration capacity...
2.3K
01:25Urinary Tract Calculi VI: Surgical Management
1.0K
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...
1.0K