I had breast cancer 10 years ago. The surgeon who found out told me I should have a mastectomy. (immediately)
I went for a second opinion, to a surgeon who is tops in the field. He said there was NO need for a mastectomy, that all I needed was 6 weeks of radiation.
I followed his advice, happily.
The moral: ALWAYS GET A SECOND OPINION.
Best of luck!
Gurnee, IL