People are surviving cancer long than ever before due to improved therapies. However, primary cancer can metastasize up to the brain and cause a metastatic brain tumor. Breast cancer brain metastases are becoming more common because of this.
So far doctors have found that certain subtypes of breast cancer, like HER2-positive, triple-negative, or basal-like breast cancer, are more likely to metastasize to the brain. There are many systemic therapies and clinical trials currently being conducted to combat this rise in secondary brain tumors. These metastatic brain tumors are different from primary brain tumors in that they are made up of breast cancer cells that have traveled to the brain, which means they require different treatment than primary brain tumors or breast cancer found in other parts of the body.
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