I had breast cancer (stage 2 - invasive; 3 lymph nodes affected) in my right breast, had a mastectomy in Jan. 2008., chemo, etc... and things have been getting back to normal until I recently felt a lump in my left breast. I went for a recommended mammogram of the left breast and they found nothing where I felt the lump but said they do see a shadow in all views from the top/side that was not there in my mammogram 6 months ago - they have advised me to see my surgeon. I am a "fact" junkie - and am frustrated waiting the 12 days to see the surgeon. What could this be? Is it possible that it is NOT cancer?