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Published on: May 11, 2015
Pulmonary hypertension complicating hepatocellular carcinoma
Gastroenterology
|November 1, 1984
Summary
Primary liver cancer can cause pulmonary hypertension through tumor emboli spreading to lung vessels. These emboli, originating from portal vein invasion, showed organization and recanalization in a unique case.
Area of Science:
- Hepatology
- Cardiology
- Oncology
Background:
- Primary liver cell carcinoma (hepatocellular carcinoma) can present with unusual metastatic patterns.
- Pulmonary hypertension is a serious condition affecting the lungs' blood vessels.
Observation:
- A case of hepatocellular carcinoma with tumor emboli invading the pulmonary microvasculature is described.
- The emboli originated from tumor invading the portal vein and accessed the pulmonary circulation via a splenorenal shunt.
Findings:
- Clinical, radiologic, electrocardiographic, and cardiac catheterization confirmed pulmonary hypertension.
- Histological examination revealed tumor emboli undergoing organization and recanalization, with no radiologic evidence of pulmonary metastases despite a 20-month clinical course.
Implications:
- This case highlights a rare mechanism of pulmonary hypertension secondary to hepatocellular carcinoma.
- Understanding tumor emboli behavior, including organization and recanalization, is crucial for managing such complex cases.
- The findings suggest that pulmonary hypertension can occur without overt pulmonary metastases in hepatocellular carcinoma.
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