Hi,
I was told by my aunt who is an oncologist in Boston, that the worst kind of breast cancer is when it is ER- PR- and Her2/neu-. Basically because there is not treatment for it. The second worst is ER- PR- and HER2/neu+. Anything positive ER PR was better because they had more choices for treatment. Her2/neu is aggressive alone because it is fed by protein.
Like I said this is just what she told me when I was diagnosed last August. Hope this helps.
Shawn
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