Between April 2017 and April 2019，all consecutive patients who will undergo curative resection (R0 resection) at the First Affiliated Hospital of Sun Yat-Sen University in Guangzhou, China, for HCC based on the modified WHO classification of tumors of the digestive system, are considered for inclusion. By the eligibility criteria stated below, MVI presentative rate is 30-42% in chinese HCC population as reported, and an estimated 400 patients will be needed for this study.