I was diagnosed with breast cancer in 7-07 with microscopic node involvement in just 1 node. Did lumpectomy, chemo AC dose dense, radiation, tamoxifen for a year (ER+, HER-2 -). Just found via liver CT only one 2 cm tumor in liver, and PET scan showed no other mets anywhere else. Oncologist says this is pretty rare. I am considering liver resection vs Cyberknife, followed by 4 mths chemo with a taxane. Liver tumor is on top surface of right lobe. Opinions?