Hi, I had lumpectomy in October, half way through chemo, and met radiologist today, he told me i d have 15 sessions and a further 8 as a precaution to the chest wall. some of muscle of the chest wall was removed as the tumor was embedded into it. My oncologist at the time said he got all the cancer. but the radiologist said today that there likely was some cells still there. can u tell me is this common and what does it mean for outcome