CA 15.3 (Breast Cancer Marker), Serum
- Reporting Time:
- 6 Hrs
- Specimen Type:
- Home Collection:
To monitor the response to treatment and detect recurrence of invasive breast cancer.
During treatment or post treatment of invasive breast cancer.
The cancer antigen 15-3 (CA 15-3) test and CA 27.29 test are used to monitor treatment and detect recurrence of breast cancer. Additionally, clinical evaluations and tests like estrogen and progesterone receptors, Her2/neu, and gene expression tests are used. CA 15-3 is done to assess the tumor burden and used as a tumor marker in cases producing elevated amounts of CA 15-3. The CA 15-3 and CA 27.29 tests are not used as screening tests as they are not sensitive or specific enough.
1) What is CA 27.29?
CA 27.29 test measures the same protein as CA 15-3 and is used in the same way.
2) Is screening for CA 15-3 required in positive family history cases?
No, as it is not sensitive or specific enough.