Related Experiment Video
Updated: Mar 3, 2026
06:37
An Immature Murine Model of Reversible Unilateral Ureteral Obstruction
Published on: April 4, 2025
922
Congenital anterior urethral diverticulum.
European Urology
|January 1, 1984
Summary
Congenital anterior urethral diverticulum (CAUD) presents in males with urinary obstruction and infections. A rare case showed urinary ascites and severe kidney changes in a neonate.
Area of Science:
- Pediatric Urology
- Congenital Abnormalities
- Urinary Tract Disorders
Background:
- Congenital anterior urethral diverticulum (CAUD) is a rare condition affecting the male urinary tract.
- Early diagnosis and management are crucial for preventing complications.
Observation:
- Seven male subjects diagnosed with CAUD, including neonates, school-aged children, and an adolescent.
- Presenting symptoms included urinary obstruction and urinary tract infections.
- A neonate presented with urinary ascites and severe upper urinary tract changes, a rare manifestation.
Findings:
- Most cases (6/7) exhibited a wide-mouthed saccular diverticulum.
- One case presented with a narrow neck globular diverticulum.
- Urinary obstruction and infection were common clinical presentations.
Implications:
- This study highlights the varied clinical presentations of CAUD in pediatric patients.
- Understanding these presentations aids in timely diagnosis and appropriate treatment.
- Management strategies for CAUD require individualized approaches based on presentation and diverticulum type.
Related Concept Videos
01:19Anatomy of the Genitourinary System II: Bladder and Urethra
2.2K
The lower urinary system consists of the urinary bladder and urethra, which are essential in storing and expelling urine from the body. Together with the internal and external sphincters, these structures work together to regulate urination effectively.Anatomy of the BladderThe urinary bladder is a muscular, stretchable organ behind the pubic bone and in front of the rectum. In females, the bladder is positioned anterior to the vagina and inferior to the uterus, while in males, it is located...
2.2K
01:11Anatomy of the Genitourinary System I: Kidneys and Ureters
817
The upper urinary system comprises two kidneys and two ureters, which are crucial in filtering blood and forming urine.KidneysLocation and Structure:The kidneys are two bean-shaped organs positioned behind the peritoneum on either side of the spine.Kidneys are between the 12th thoracic (T12) and the 3rd lumbar (L3) vertebrae.The position of the liver causes the right kidney to sit slightly lower than the left.Protective Layers:Each kidney is enveloped in a tough, fibrous membrane called the...
817
01:22Ureters
1.8K
The ureters are retroperitoneal tubes located on either side of the vertebral column. They are responsible for transporting urine from each kidney to the urinary bladder. These tubes have thick walls and are approximately 25-30 cm long. Their diameter is around 10 mm at the renal pelvis, gradually narrowing to 1 mm as the ureter obliquely enters the posterior bladder wall through the ureteric orifices. The shape of these orifices is slit-like, which helps to prevent urine backflow toward the...
1.8K
01:23Urinary Bladder
3.9K
The urinary bladder is a hollow, muscular sac that temporarily stores urine before it is expelled from the body. It can hold approximately 600 mL of urine prior to micturition. The bladder is retroperitoneal and located behind the pubic symphysis in the pelvic floor.
In males, the bladder is situated in front of the rectum, while in females, it is positioned anterior to the vagina and uterus. The bladder floor contains an inverted triangular area called the trigone, defined by the two ureteric...
In males, the bladder is situated in front of the rectum, while in females, it is positioned anterior to the vagina and uterus. The bladder floor contains an inverted triangular area called the trigone, defined by the two ureteric...
3.9K
01:16Urethra
5.2K
The urethra is a hollowed tubular organ through which urine is expelled from the body. This structure extends from the bladder to the external opening, allowing urine to be released.
The anatomy of the urethra differs between males and females. In females, the urethra is short, measuring about 3–4 cm in length, and opens anterior to the vaginal opening. In males, the urethra is longer and passes through the penis, serving dual purposes: expelling urine and ejaculating semen. The male...
The anatomy of the urethra differs between males and females. In females, the urethra is short, measuring about 3–4 cm in length, and opens anterior to the vaginal opening. In males, the urethra is longer and passes through the penis, serving dual purposes: expelling urine and ejaculating semen. The male...
5.2K
01:20Disorders of the Urinary System
1.4K
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...
1.4K