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Primary carcinomas of urinary bladder diverticula.
Acta Pathologica Japonica
|March 1, 1984
Summary
This study reports two autopsy cases of urinary bladder diverticulum carcinoma, presenting with hematuria but undiagnosed pre-mortem. One case uniquely featured two distinct carcinomas within a single diverticulum.
Area of Science:
- Uropathology
- Oncology
- Surgical Pathology
Background:
- Urinary bladder diverticula are uncommon outpouchings that can harbor neoplastic processes.
- Carcinomas arising within bladder diverticula are rare and often present diagnostic challenges.
Observation:
- Two autopsy cases of carcinoma originating in urinary bladder diverticula were identified.
- Both patients presented with hematuria and cystoscopic findings suggestive of bladder tumors.
Findings:
- Tumors were located within diverticula, mimicking ordinary bladder tumors due to growth into the diverticular orifice.
- Case 1 showed two separate carcinomas (keratinizing squamous cell carcinoma and transitional cell carcinoma) within one diverticulum, a potential first report.
- Case 2 presented with an undifferentiated carcinoma with widespread metastases.
Implications:
- Bladder diverticulum carcinoma diagnosis can be challenging, often requiring autopsy confirmation.
- The occurrence of multiple distinct carcinomas within a single diverticulum highlights the complex oncogenesis in these lesions.
- Metastatic potential exists for these rare bladder cancers, emphasizing the need for thorough staging if diagnosed antemortem.