Parameter
| Biomarker | CYFRA 21-1 | Full name | Cytokeratin 19 fragment | Molecular Type | Protein (cytokeratin 19 fragment) |
|---|---|---|---|---|---|
| Molecular Formula | Protein fragment | Molecular Weight | ~40 kDa | Core Functional Dimensions | Diagnosis and Prognosis |
| Disease | Cholangiocarcinoma (CCA) | Disease Subtypes | / | ||
| Organ | Bile duct/Liver | Test Sample / Technology Platform | Serum (Immunoassay) | ||
| Pathobiological Mechanisms | Cholangiocarcinoma cells are released after apoptosis, reflecting tumor burden, and the increase is not obvious in benign biliary diseases | ||||
| Clinical Availability Status | Research validation; It is more specific than CA19-9 | ||||
| Notes and Dynamics | |||||