Right Atrial Tumor Invasion: A Rare Presentation of Hepatocellular Carcinoma.

Metastatic hepatocellular carcinoma has been associated with a poor prognosis. Common areas of spread include the lungs, portal vein, and portal lymph nodes. Affected patients often have coexisting comorbidities, including cirrhosis, chronic hepatitis, and nonalcoholic fatty liver disease. Our case discusses a rare presentation of hepatocellular carcinoma that had spread to the right atrium, manifesting as acute heart failure in a patient with no history of liver disease. This case highlights the importance of recognizing unusual presentations of advanced hepatocellular carcinoma, as earlier detection can lead to improved patient outcomes.