10/15/2026
October is Breast Cancer Awareness Month.
Did you know that breast cancer can also affect the brain?
More than one-third of patients with advanced HER2-positive or triple-negative breast cancer may eventually develop brain metastases.
Research has shown that when breast cancer spreads to the brain, tumor cells can adapt to the brain environment and interact with surrounding brain cells. Breast cancer metastases may also show preferences for particular regions of the brain.
Despite advances in breast cancer treatment, brain metastases remain extremely challenging to treat, and outcomes can be poor. We urgently need more research to understand how and why breast cancer spreads to the brain and to develop more effective treatments for patients facing this diagnosis.
At the USC Brain Tumor Center, we are committed to advancing research and multidisciplinary care for patients with metastatic tumors of the brain.
This October, as we recognize Breast Cancer Awareness Month, we also recognize the patients and families facing the complex reality of breast cancer that has spread to the brain. 💗ðŸ§