Sorry that your wife has been diagnosed. You are probably still at the stage that everything is happening so fast, the surgeons seem like they are speaking a foreign language and you are both still in a little bit of shock??
Regarding your question, it is something that you will need to be guided by what Anna feels is right for her and also what info your surgeon has given you and why.
I had surgery first and then chemo. I think a lot of times they do not know all the results until the tumour is removed. Sometimes they need to check if it has spread to your lymph nodes etc during surgery.
I also talk on one of the US forums and they seem to do chemo first to shrink the tumour then surgery. I think this way not as much as the breast needs to be taken. Breast conservation, however they seem to do it the other way round here (generally speaking).
Perhaps you should ask your surgeon why they would want to do chemo first? Is it a large tumour?
At the end of the day the Decision is Anna's, but by coming here and asking questions and making an informed decision that give you the best outcome for a long and happy life together.
Regards
Tanya