INTRODUCTION. Hepatocellular carcinoma (HCC) is the fifth most frequent malignant tumor in the world and leads to 500000 deaths globally every year[].Approximately 30% of HCC patients have concurrent portal vein tumor thrombus (PVTT)[], which appears to be terminal stage HCC.PVTT is closely related to intrahepatic metastasis and recurrence after surgical resection and/or transarterial ....