Abstract:Objective To discuss the clinical value of serum prothrombin induced by vitamin K absence or antagonist-II (PIVKA-II) in diagnosing hepatocellular carcinoma (HCC). Methods This study recruited 84 patients with HCC, 54 patients with other malignant tumors (including lung cancer, endometrial cancer, appendix mucous adenocarcinoma, etc), 88 chronic hepatitis patients, and 39 patients with negative hepatitis B surface antigen (HBsAg) and normal liver function in Tumor Hospital of Guizhou Province from September 2014 to January 2015.The serum levels of PIVKA-II and alpha-fetoprotein (AFP) were measured by chemiluminescence enzyme technique.Their data were analyzed by SPSS17.0. Results The serum levels of PIVKA-II and AFP in the HCC group were higher than those in other groups. The combination of PIVKA-II and AFP was better than single use, the sensitivity of combination of PIVKA-II and AFP was 90.50%. Conclusions Serum PIVKA-II detection has higher clinical value for diagnosis of HCC. It can be used as a supplement to AFP detection. Joint PIVKA-II and AFP detection can improve the diagnosis efficiency of HCC.