Sorry, Matt, can't agree with you here - I stand by my original answer. PJH

Bill, of course, I haven't seen your sister's medical records, but unfortunately, many people have aggressive tumors that spread no matter what.  Often when it seems like the tumor spreads aggressively after surgery, it had already spread before the surgery.  For a tumor to be detected, it has to have some time to grow large enough to show up on a scan or to cause symptoms.  So if cancer is detected in the lungs, bones or liver a week or a month after the original tumor was removed from the breast, those cancer cells were probably already in the distant organ at the time of surgery.  I am sorry to hear about how fast your sister's cancer spread.