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A HCC with portal vein thrombosis (white arrow). The patient was treated with concurrent intra-arterial chemotherapy and IMRT by helical tomotherapy. A total of 50 Gy of radiation in 20 fractions was delivered. After treatment, the patient received a year of adjuvant intra-arterial chemotherapy. The patient was disease-free 2 years after RT. (a) Positron emission tomography (PET)CT images before RT, (b) PET-CT images 2 years after RT.
