Had something similar just happen. IDC in left breast and another suspicious spot picked up on initial MRI. Was scheduled for MRI biopsy and was told they could no longer see it the day of the procedure so biopsy was canceled. Had lumpectomy for IDC with Sentinal Node Biopsy (no cancer spread) two weeks ago. I was also told by the Dr, that a number of things can cause the abnormality in MRI scans and scheduled another for 6 months.