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Primary malignant bladder carcinoid--a diagnostic and management dilemma
1Department of Urology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India.
Urology
|June 7, 2000
Summary
A rare primary bladder carcinoid tumor was diagnosed in a middle-aged man presenting with hematuria. Metastatic neuroendocrine tumors were identified in the chest during follow-up.
Area of Science:
- Uro-oncology
- Endocrine Pathology
- Surgical Pathology
Background:
- Primary carcinoid tumors of the bladder are exceptionally rare neuroendocrine neoplasms.
- Diagnosis often follows presentation with irritative voiding symptoms and hematuria.
Observation:
- A middle-aged male patient presented with gross hematuria and irritative voiding symptoms.
- Radical cystoprostatectomy revealed an invasive, infiltrating primary bladder carcinoid.
- Follow-up evaluation showed prominent metastatic disease in the chest (hurricane chest).
Findings:
- Immunohistochemical markers confirmed neuroendocrine differentiation.
- The pathological findings were consistent with a high-grade neuroendocrine carcinoma of the bladder.
Implications:
- This case highlights the importance of considering rare neuroendocrine tumors in the differential diagnosis of bladder cancer.
- Management and prognosis differ significantly from urothelial carcinomas.
- Further research into the pathogenesis and optimal treatment strategies for primary bladder carcinoids is warranted.