Parameter
| Biomarker | CEA | Full name | Carcinoembryonic antigen | Molecular Type | Protein |
|---|---|---|---|---|---|
| Molecular Formula | / | Molecular Weight | / | Core Functional Dimensions | Monitoring, prognosis |
| Disease | Breast Cancer | Disease Subtypes | / | ||
| Organ | Breast | Test Sample / Technology Platform | Serum (ELISA, CLIA) | ||
| Pathobiological Mechanisms | CEA is an embryonic antigen. Breast cancer cells express it abnormally and release it into the bloodstream, which is associated with tumor metastasis and poor prognosis. | ||||
| Clinical Availability Status | Clinical assistance (for monitoring recurrence): Commonly used for recurrence monitoring in advanced or metastatic breast cancer. The specificity and sensitivity for early diagnosis are relatively low. | ||||
| Notes and Dynamics | An increase in CEA can also be observed in gastrointestinal tumors, inflammatory conditions, etc. It is necessary to combine with imaging examinations to confirm recurrence. | ||||