Hi kel016
Ordinary mammograms don't pick up tumours in dense breast tissue as well as MRI's.
Did you have a MRI of your breast in the large, noisy machine or a mammogram?
How does a MRI mammogram work?
If you had an MRI of your breast it is an excellent scan.
Ask for another opinion if you are having second thoughts about requesting another mastectomy. Odds of a recurrance are different for different women and different types and stages of breast cancer, you need to discuss this with your Surgeon or Oncologist before making a decision.
Once you are fully informed a decision is much easier to make.
With love
Joy K