Related Experiment Video
Updated: Jul 22, 2026
09:07
An Orthotopic Model of Murine Bladder Cancer
Published on: February 6, 2011
Leiomyoma of the urinary bladder
M K Roy1, R H Joarder, M Suruzzaman
1Department of Urology, Mymensingh Medical College, Mymensingh.
Mymensingh Medical Journal : MMJ
|August 2, 2005
Summary
Benign bladder tumors, like leiomyomas, are rare. This case highlights a leiomyoma presenting as bladder outlet obstruction in a 66-year-old male, emphasizing the importance of considering rare diagnoses.
Area of Science:
- Urology
- Oncology
- Pathology
Background:
- Benign mesenchymal tumors of the bladder are rare, accounting for less than 1% of all bladder neoplasms.
- Leiomyoma is the most common type, representing 35% of these rare tumors.
- These tumors can arise from various bladder layers (submucosal, intramural, subserosal) and locations.
Observation:
- Clinical presentations vary, including obstructive (50%), irritative (38%), and hematuria (11%) symptoms.
- Nineteen percent of cases are asymptomatic, complicating diagnosis.
- A 66-year-old male presented with chronic voiding obstructive symptoms, initially diagnosed as prostatic enlargement or bladder tumor.
Findings:
- Surgical exploration revealed a well-circumscribed mass at the bladder neck.
- Pathological examination confirmed the mass as a bladder leiomyoma.
- The patient experienced an uneventful recovery with symptom resolution and no recurrence.
Implications:
- Bladder leiomyomas, though rare, should be considered in the differential diagnosis of bladder outlet obstruction, especially in older males.
- Accurate diagnosis requires a combination of imaging and, ideally, cystoscopy.
- Surgical management can be effective for symptomatic bladder leiomyomas.
Related Concept Videos
01:22Ureters
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...
01:23Urinary Bladder
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...
01:20Disorders of the Urinary System
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...
01:19Anatomy of the Genitourinary System II: Bladder and Urethra
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...
01:26Nursing Assessment of the Genitourinary System II: Inspection and Palpation
The nursing assessment of the genitourinary (GU) system involves a systematic inspection and palpation to identify abnormalities in the kidneys, bladder, and surrounding structures.InspectionMouth: Inspect for signs of kidney dysfunction, such as stomatitis (inflammation of the mouth) and ammonia breath, which may occur in advanced kidney disease due to the buildup of urea, breaking down into ammonia.Skin: Check for pallor, which could indicate anemia caused by kidney disease. Look for...
01:26Urinary 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...