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Bird_skull667 t1_jdgu95l wrote

This is false. Metastatic Colon cancer in your brain is colon cancer, not brain cancer. Breast cancer in your liver is breast cancer, and both are treated based on the type of cancer you have. Cancer treatments, even for metastatic disease are based on the mutations and drivers of specific cancers. It's why there are different types of chemo, immune therapies, CDK inhibitors, surgeries, etc. 'Cancer' describes a wide range of different genetic mutations that cause malignant growth of cells, but it is not one thing. This is also why there is no one cure, or treatment, for all cancers.