Tumor markers Reference value (serum) Main relevant tumor diseases 1 AFP Methemoglobin <25 ng/ml Diagnosis of primary liver cancer, embryonal tumor, testicular cancer, etc. 2 CEA Carcinoembryonic antigen <5 ng/ml Digestive tract cancer, breast cancer, lung cancer, etc. 3 CA19-9 Glycocalyx antigen 19-9 <35 U/ml Pancreatic cancer, gastrointestinal cancer, liver and biliary tract tumor 4 CA15-3 Glycocalyx antigen 15-3 3 <25 U/ml Breast cancer 5 CA12-5 Glycocalyx antigen 12-5 <35 U/ml Ovarian cancer 6 CA72-4 Glycocalyx antigen 72-4 Male: 4 U/ml Stomach cancer, ovarian cancer Female: 6 U/ml 7 β2-MG β2-microglobulin <3.4 mg/L Hodgkin's disease, lymphoma, multiple myeloma 8 SCC squamous carcinoma antigen <1.5 ng/ml cervical cancer, squamous carcinoma 9 NSE neuron-specific enolase 12.5 mg/L neuroblastoma, neuroendocrine cell tumor, small cell lung cancer 10 CyFRA21-1 soluble cytokeratin 19 fragment <3.3 ng/ml non-small cell lung cancer 11 PSA prostate-specific antigen 3 ng/ml prostate cancer 12 TPA Tissue polypeptide antigen 80 U/L Bladder cancer, prostate cancer 13 Ag-NORs T lymphocyte rDNA transcriptional activity analysis Silver-loving protein content (I/S): 6-10% Lower than normal activity in patients with malignant tumors, suitable for cancer prognosis tracking and ancillary diagnosis 14 TSGF Malignancy-associated substance ≤64 U/ml Higher than normal serum content in patients with malignant tumors, especially The combination of various tumor markers can improve the diagnosis rate of tumor. AFP ▲ AFU α-L-amylase ▲ CA19-9 Glycoprotein 19-9 ○ ○ ○ ○ ▲ ○ CA12-5 Glycoprotein 12-5 ▲ △ CA15-3 Glycoprotein 15-3 ▲ ○ CA72-4 Glycoprotein 72-4 ▲ △ PSA Prostate-specific antigen ▲ HCG Human chorionic gonadotropin ▲ β2-MG β2-microglobulin ▲ ▲ ▲ SCC Squamous Immunoglobulin A antibody ▲ EA-IgA EBV early antigen Immunoglobulin A antibody ▲