Related Experiment Video
Updated: Jul 1, 2025
10:19
Evaluation of Biomaterials for Bladder Augmentation using Cystometric Analyses in Various Rodent Models
Published on: August 9, 2012
19.3K
A seed link connector protruding into the bladder formed a bladder stone
Shuhei Aoyama1, Kouji Izumi1, Tomoyuki Makino1
1Integrative Cancer Therapy and Urology Kanazawa University Graduate School of Medical Sciences Kanazawa City Ishikawa Prefecture Japan.
IJU Case Reports
|March 5, 2024
Summary
Low-dose-rate brachytherapy for prostate cancer can lead to seed migration into the bladder, forming a bladder stone. This case highlights the importance of precise seed placement to prevent complications like bladder stones.
Area of Science:
- Urology
- Oncology
- Medical Physics
Background:
- Low-dose-rate brachytherapy is a standard treatment for localized prostate cancer.
- Precise seed placement is crucial for effective treatment and minimizing complications.
Observation:
- A patient treated with low-dose-rate brachytherapy for prostate cancer developed dysuria two months post-procedure.
- Imaging revealed a migrated brachytherapy seed protruding into the bladder, initially observed.
- Sixteen months later, the seed was found to be encompassed by a bladder stone, causing hematuria.
Findings:
- The case presents the first reported instance of a bladder stone forming around a brachytherapy seed that migrated into the bladder.
- Transurethral bladder lithotripsy was successfully used to remove the stone and seed.
Implications:
- This case underscores the critical need for meticulous seed localization within the prostate during brachytherapy.
- Potential complications, such as bladder stone formation due to seed migration, should be considered in patient monitoring.
- Improved techniques for seed placement may reduce the incidence of such adverse events.
Related Concept Videos
01:20Disorders of the Urinary System
300
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...
300
01:22Ureters
482
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...
482
01:23Urinary Bladder
682
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...
682