I am 67 and had a lumpectomy almost 8 years ago. I did two yrs of tamox. and another 5 on AI's. (tumor was <2cm, had radiation, no chemo]. Completed arimidex Feb. 2010--7 plus months ago. For about a month, the quadrant surrounding the scar and area near the sentinel node biopsy scar are exceptionally painful when touched and give me a strained feeling most of the time. I have read some of the posts that say that scar tissue may harden over the years and become painful. But why these symptoms after 8 years! Is it possible for cancer to recur in the scar tissue? I am having a mammo and ultra sound in a few days. Is there any way of being sure the tissue is cancer free without a core biopsy? My memory of the core biopsy I had 8 years ago makes me wince, even still. It was pure torture. The absolutely worst part of the whole cancer ordeal. Thank you.