What is the main source of brain metastasis in women?

Updated: Aug 01, 2018
  • Author: Victor Tse, MD, PhD; Chief Editor: Nicholas Lorenzo, MD, MHA, CPE  more...
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Breast tumor is the main source of metastatic disease in women, followed by melanoma, renal, and colorectal tumors. Breast cancer is a heterogeneous disease demonstrating genotypic and phenotypic diversity. The interval between the diagnosis of primary breast cancer and brain metastasis can be up to 3 years. The first site of distant failure is the brain, alone or as a component of metastatic disease, and a proportionately high number are ER- or HER2 negative. Yet HER positive cancer is twice as common to metastasize to the brain. Additionally, it has been shown that nm23 and CD44 in breast cancer are indicators for distant metastasis.

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