Benign mesothelial tumor of bladder.

Area of Science:

• Urology
• Pathology
• Oncology

Background:

• Benign mesothelial tumors of the bladder are exceptionally rare.
• These tumors can present with varied clinical symptoms, impacting bladder function.

Purpose of the Study:

• To present two distinct cases of benign bladder mesothelial tumors.
• To highlight the clinical presentation, management, and outcomes of these rare entities.

Main Methods:

• Case report 1: Analysis of a patient experiencing urinary retention post-stress incontinence surgery.
• Case report 2: Review of a large bladder fibroma with an extensive 15-year follow-up.

Main Results:

• Case 1: A benign mesothelial tumor was identified as the cause of post-operative urinary retention.
• Case 2: A large fibroma, a type of benign mesothelial tumor, demonstrated a stable course over 15 years.

Conclusions:

• Benign mesothelial tumors, though rare, should be considered in the differential diagnosis of bladder masses and urinary dysfunction.
• Long-term surveillance may be appropriate for certain benign bladder mesothelial tumors, such as fibromas.