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Urinary Bladder

Urinary 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...

Anatomy of the Genitourinary System II: Bladder and Urethra

Anatomy 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...

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Updated: Dec 23, 2025

An Orthotopic Bladder Tumor Model and the Evaluation of Intravesical saRNA Treatment

An Orthotopic Bladder Tumor Model and the Evaluation of Intravesical saRNA Treatment

Published on: July 28, 2012

A large bladder leiomyoma.

Sawkar Vijay Pramod¹, Ferry Safriadi¹, Bethy S Hernowo²

¹Department of Urology, Faculty of Medicine Universitas Padjadjaran, Hospital Hasan Sadikin, Bandung, Indonesia.

Urology Case Reports

|April 24, 2020

Summary

This case report details a large bladder leiomyoma, a rare benign tumor. Open excision proved effective for this significant endovesical mass, with no post-operative symptoms.

Keywords:

Benign tumor Bladder leiomyoma Open excision

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Last Updated: Dec 23, 2025

An Orthotopic Bladder Tumor Model and the Evaluation of Intravesical saRNA Treatment

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A Murine Orthotopic Bladder Tumor Model and Tumor Detection System

A Murine Orthotopic Bladder Tumor Model and Tumor Detection System

Published on: January 12, 2017

Area of Science:

Urology
Surgical Oncology

Background:

Bladder leiomyoma is an uncommon, benign bladder tumor.
This study presents the first large endovesical leiomyoma case from Indonesia.
It also represents the largest reported bladder leiomyoma with no post-operative complications.

Observation:

A 42-year-old female presented with a year of painless hematuria and irritative voiding symptoms.
Cystoscopy revealed a large, well-encapsulated papillary solid mass at the bladder trigone.
Surgical excision measured 7 x 6.5 x 4 cm and weighed 800g.

Findings:

Histopathology confirmed the diagnosis of endovesical leiomyoma of the urinary bladder.
The patient experienced a complete recovery with no post-operative symptoms.

Implications:

Open excision is a viable and effective treatment for large endovesical leiomyomas.
This case highlights successful management of a rare and sizable bladder tumor.