Verrucous carcinoma of urinary bladder

Area of Science:

• Urology
• Oncology
• Pathology

Background:

• Bladder diverticula are uncommon outpouchings of the bladder wall.
• Verrucous squamous cell carcinoma is a rare, low-grade malignancy of the bladder.
• Schistosomiasis is a parasitic infection associated with bladder cancer.

Observation:

• A seventy-five-year-old male presented with a four-month history of dysuria.
• Imaging and subsequent biopsy revealed verrucous squamous cell carcinoma within a bladder diverticulum.
• The patient's urine and tissue samples were negative for schistosome eggs.

Findings:

• The tumor was a verrucous squamous cell carcinoma.
• The malignancy was located within a bladder diverticulum.
• The patient had no history or evidence of schistosomiasis.

Implications:

• This case highlights the uncommon occurrence of verrucous squamous cell carcinoma in non-bilharzial bladder diverticula.
• It suggests that bladder diverticula may serve as a site for malignant transformation independent of parasitic infection.
• Further research is needed to understand the pathogenesis of bladder cancer in diverticula without parasitic etiology.