I don't know a lot about all of this as I was diagnosed ony four weeks ago and had er & prog. pos. infiltrating with neg lymph node involvement. But, you can get a lot of info on the cancer centers of america and cancer care websites. You can also have a live chat with someone at the cancer center website. There is a lot of useful info on treatments, stages & types of cancer. I hope this helps you. Good luck with whatever you are going through. I think everybody on this website are willing to help and we all pray for each other. Learn all you can about your condition and your options.