You certainly have my sympathy and prayers. I really hope that it turns out well for your wife.
Both my mother and mother-in-law went through breast cancer within months of each other, 22 years ago. Mastectomies, the whole nine yards. Both are still with us today. A couple who are close friends of my wife and I both had cancer within a few years of each other - he, with POEMS and she, with bowel cancer. They both are still with us. So, there's always hope.