Mastectomy with Deep Margin

Dear nana60 - My wife has been diagnosed with DCIS in her right breast.  You can see my two threads that I created - "DCIS Diagnosis Received - Comments Invited" (not so active now) and "DCIS Diagnosis Received - Doctors Visits - Comments Invited".  We have seen BC surgeon and reconstruction surgeons together.  My wife has been presented with a choice between lumpectomy plus radiation and mastectomy plus immediate reconstruction.  Both options will include a sentinel node biopsy.  We were told that in ten percent of the cases, mastectomy patients require radiation.  My wife's biopsy had four samples.  The Grade is Grade 2, there is some comedo-necrosis and suspicion of microinvasion in one sample but the other samples are non-comedo.  The ER is positve and PR negative.  We were told that the status of microinvasion can only be determined after the surgery.  My wife is leaning toward the mastectomy.  We were told that 20 to 30 percent of lumpectomies require a second lumpectomy or even a mastectomy.  The mammogram shows DCIS in about 25 to 35 percent of the breast.  My wife realizes that there is a ten percent chance that radiation will be necessary.  I hope this is helpful.  I will read your thread to see how things are going.  Good luck.