Related Experiment Video
Updated: Aug 27, 2025

05:25
Ultrasonography of the Adult Male Urinary Tract for Urinary Functional Testing
Published on: August 14, 2019
19.3K
The Pseudo-Bladder: A Case of the Prostatic Urethra Masquerading as the Bladder
Jeanette Byer1, Cayde Ritchie2, Audrey Alexander3
1Loma Linda University, School of Medicine, Loma Linda, CA, 92354.
Urology
|September 30, 2022
Summary
This study details a rare case of congenital bladder dysplasia in an infant, presenting as a dilated prostatic urethra mimicking a bladder. This condition caused severe genitourinary issues, including kidney damage and infections.
Area of Science:
- Pediatric Urology
- Genitourinary Development
- Medical Diagnostics
Background:
- Congenital bladder underdevelopment can lead to severe genitourinary complications.
- Infants may present with declining renal function, recurrent urinary tract infections, and epididymo-orchitis.
- High-grade hydronephrosis and vesicoureteral reflux are indicative of significant urinary tract abnormalities.
Observation:
- A male infant exhibited symptoms of declining renal function and recurrent infections.
- Cystoscopic evaluation revealed a massively dilated prostatic urethra mistaken for the bladder.
- A small, dysplastic "true bladder" with dilated ureteral orifices was identified anteriorly.
Findings:
- The primary finding was a rare form of bladder dysplasia characterized by a dominant, dilated prostatic urethra.
- Diagnostic challenges arose from the unusual anatomy and the limitations of standard imaging modalities.
- The condition led to bilateral high-grade hydronephrosis and vesicoureteral reflux.
Implications:
- This case highlights the diagnostic complexities of congenital bladder underdevelopment.
- Early identification and management are crucial for preventing irreversible renal damage.
- Reconstructive bladder surgery is planned, emphasizing the need for tailored surgical approaches.
Related Concept Videos
Anatomy of the Genitourinary System II: Bladder and Urethra
181
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...
181
Urinary Bladder
1.3K
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...
1.3K
The Micturition Reflex
928
Urination, or micturition involves the coordination of the bladder's detrusor muscle and two sphincters to ensure controlled bladder emptying.
The process begins with bladder filling, where the bladder wall stretches as urine accumulates. This stretching activates the urine storage reflex, mediated by the sacral spinal segments and the pontine storage center. Efferent sympathetic impulses stimulate the detrusor muscle to relax and the internal urethral sphincter to contract, facilitating...
The process begins with bladder filling, where the bladder wall stretches as urine accumulates. This stretching activates the urine storage reflex, mediated by the sacral spinal segments and the pontine storage center. Efferent sympathetic impulses stimulate the detrusor muscle to relax and the internal urethral sphincter to contract, facilitating...
928
Urethra
1.5K
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...
1.5K
Imaging Studies VI: Voiding Cystourethrography and Cystography
91
Voiding Cystourethrography (VCUG) and Cystography are specialized radiographic procedures used to examine the structure and function of the bladder and urethra.Voiding Cystourethrography (VCUG)A Voiding Cystourethrogram (VCUG) is a diagnostic imaging procedure that assesses the anatomy and function of the lower urinary tract. It focuses on the bladder, bladder neck, and urethra, helping detect abnormalities such as vesicoureteral reflux (VUR)—the backward or reverse flow of urine into the...
91

