Stage 4 Patient
I had an excisional biopsy. It wasn't called open though. The biopsy is going to take out all or part of the lump. They will take the lump and send it to a pathologist, which will run a few tests on it to see if it is cancer, what kind, etc. they would have to go back in usually if it is cancer with a lumpectomy or mastectomy, just depends. With a lumpectomy they will usually take as much needed to get clean margins, all the cancer plus area around it.