How Tumors Can Change
Cancer cells often change to evade the immune system.
With breast cancer,receptor statuscan change too.
A tumor may beHER2-positive when first diagnosed, but HER2-negative late.
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Tumor heterogenicity is another important point of consideration.
Blood tests to check for these proteins may be done to follow your progress with metastatic breast cancer.
Tumor marker tests are not perfect.
Get our printable guide for your next doctor’s appointment to help you ask the right questions.
With metastatic breast cancer, you’ll have many test results to await.
National Cancer Institute.Tumor markers.
11(4):275-281. doi: 10.1159/000447549
