Hi El. I had a 7cm dcis in right breast, mastectomy, implant single side recon, and like you was offered no other therapy. I too was surprised not to have been given any hormone therapy as my dcis was er+ 85% . I understood there was nothing to radiate as all the affected tissue was gone, and no need for chemo as cancer cells hadnt spread. But Ithought I might have been offered hormone therapy to help prevent cancer in the other side. most books Ive read had indicated hormone therapy wouild be standard but when I asked the question was told its definitely not offered in Qld in cases of pure DCIS, the risk outweighs the benefit.???? I actually never even met with an oncologist, just breast and plastic surgeons were the only doctors I saw. I did feel a bit nervous but just had my 1st of yearly checkups for the next 5 years and all was well. Things are calming down and life going back to normal, Im not as worried now. I hope the your onc can explain the reasoning in a way that gives you peace of mind.