AFP and metastatic malignant neoplasm in the lymph nodes: Additional demographic information and clinical characteristics included Karnofsky performance status(KPS), alpha-fetoprotein(AFP), Child-Pugh classification, Barcelona Clinic Liver Cancer stage(BCLC stage), tumour size, intrahepatic tumour number, prior treatments, radiation technique, lymph node metastases(LN metastases), distant metastases, smoking status and drinking status (Table 1).