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Transarterial Radioembolization Treatment of Advanced Hepatocellular Carcinoma Invading the Right Atrium

Tumor thrombus infiltration of hepatocellular carcinoma (HCC) into the inferior vena cava and right atrium is rare and is associated with a poor prognosis due to the critical location of the tumor and the limited efficiency of the available treatment strategies. In this study, we report the case of a patient with advanced HCC and tumor thrombus in the inferior vena cava and right atrium who demonstrated complete response with mass retraction upon Yttrium-90 trans-arterial radioembolization (90Y- TARE) therapy. Throughout the 16 months follow-ups after the radioembolization, the patient was free of any complications, revealing no occurrence of radiation-induced pneumonitis or tumor recurrence.