Spontaneous urinary extravasation

Area of Science:

• Urology
• Nephrology
• Radiology

Background:

• Spontaneous non-traumatic urinary extravasation is a rare condition.
• Accurate diagnosis is crucial for appropriate management.
• Distinguishing between different types of extravasation impacts treatment strategies.

Purpose of the Study:

• To describe the diagnosis and management of spontaneous non-traumatic urinary extravasation.
• To differentiate between fornical backflow and frank rupture of the renal pelvis.
• To outline indications for conservative versus surgical management.

Main Methods:

• Retrospective review of 12 patients with spontaneous non-traumatic urinary extravasation.
• Clinical assessment, diagnostic imaging (e.g., CT, MRI), and laboratory tests.
• Analysis of patient outcomes based on management approach.

Main Results:

• Urinary extravasation was categorized into fornical backflow and frank rupture.
• Fornical backflow, often due to ureteral stones, was managed conservatively.
• Frank rupture necessitated surgical intervention in cases with persistent obstruction, extravasation, or complications like urinoma or abscess.

Conclusions:

• Conservative management is effective for fornical backflow urinary extravasation secondary to calculous ureteral obstruction.
• Surgical intervention is indicated for frank renal pelvis rupture, guided by clinical status and complications.
• Timely differentiation and tailored treatment are key to successful outcomes in urinary extravasation.