What is the significance of monitoring tumor markers in breast cancer?

Monitoring tumor markers in breast cancer is primarily significant for checking for recurrence of the disease. After treatment, tumor markers can help identify whether the cancer has returned. Elevated levels of specific markers, like CA 15-3 or HER2/neu, can indicate that cancer cells have resurfaced, prompting further investigation and management. This is crucial in the ongoing surveillance of patients who have undergone treatment since early detection of recurrence can significantly influence patient outcomes.

While tumor markers can have roles in other areas, such as helping guide treatment decisions and occasionally aiding in the diagnosis, their primary utility lies in the monitoring of recurrence. This particular focus ensures proactive management of the disease, which is vital for improving survival rates and quality of life for breast cancer patients.