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Cardiac metastasis from a renal cell carcinoma
1Colorectal Department, King's College Hospital, London, UK.
International Journal of Clinical Practice
|July 9, 2003
Summary
Cardiac metastasis from renal cell carcinoma is rare but can cause serious heart obstruction. Early detection of renal tumors, potentially through investigating paraneoplastic neuropathy, is crucial for better survival rates.
Area of Science:
- Oncology
- Cardiology
- Neurology
Background:
- Renal cell carcinoma (RCC) commonly invades the renal vein and inferior vena cava.
- Cardiac metastases from RCC are infrequent and often asymptomatic.
Observation:
- A patient presented with right ventricular outflow obstruction.
- The obstruction was caused by a metastatic renal tumor within the right ventricular wall.
Findings:
- The patient had a history of ulnar neuropathy, potentially linked to the underlying renal tumor.
- This case demonstrates a rare presentation of advanced renal cell carcinoma with cardiac involvement.
Implications:
- Highlights the importance of considering paraneoplastic syndromes, such as neuropathy, in diagnosing renal lesions.
- Emphasizes the critical survival difference between localized RCC (70% 5-year survival) and metastatic disease (5% 5-year survival).