[Dysplastic urothelial changes in patients with bladder cancer]

Area of Science:

• Urology
• Oncology
• Pathology

Context:

• Urinary bladder tumors present diagnostic and therapeutic challenges.
• Transurethral resection (TUR) is a key intervention in managing bladder cancer.
• Endoscopic evaluation alone may not detect all pathological mucosal changes.

Purpose:

• To evaluate the diagnostic and therapeutic utility of transurethral resection (TUR) in urinary bladder tumors.
• To assess the prevalence of precancerous lesions in patients with bladder tumors using a differentiated resection technique with mapping.
• To investigate the correlation between dysplastic lesions and tumor histological grade.

Summary:

• A study involving 238 patients with urinary bladder tumors utilized transurethral resection (TUR) as a diagnostic, curative, or palliative measure.
• A differentiated resection technique with 9-point mapping was employed in 137 cases, revealing significant mucosal lesions not apparent during endoscopy in 122 patients.
• Precancerous lesions, indicative of future malignant epithelial proliferation, were identified in 50.9% of patients, with a strong correlation between lesion severity and tumor histological differentiation.

Impact:

• Highlights the importance of detailed pathological assessment beyond standard endoscopy in bladder tumor management.
• Identifies precancerous lesions, enabling earlier intervention and potentially improving patient outcomes.
• Provides valuable data for refining bladder cancer treatment strategies and risk stratification based on histological findings.