F2 and neoplasm: Laboratory examination results included hepatitis B surface antigen positivity, hepatitis B e antigen positivity, and hepatitis B core antibody positivity and tumor marker levels of alpha-fetoprotein 142,938.20 μg/L, abnormal prothrombin 4,599.91 mAU/ml, and carbohydrate antigen 19-9 82.05 U/ml.