This patient support community is for discussions relating to breast cancer, biopsy, genetics, chemotherapy, hormone therapy, lumps, lumpectomy, lymph node dissection, lymphedema, mammograms, mastectomy, radiation therapy, reconstruction, and self exams.
It seems that from your history, you really have a very high risk of developing invasive breast cancer in the future, and the recommendation of mastectomy with reconstruction is really plausible.
Reconstruction in a previously irradiated breast should offer no serious problems. You and your doctors should just have to be more particular about wound healing and skin pliability and elasticity in the course of the reconstruction process (but as I said, with diligent care, there should be no problems).
Regards.