Is reirradiation in the setting of DCIS of the breast ever appropriate?

If the question means DCIS as IBTR after previous surgery and RT, then would say, would follow the same criteria as IDC for reradiation. Long DFS (at least 2 years but prefer longer) from previous RT, able to get repeat lumpectomy with negative margin with reasonable cosmetic outcome, suitable for P...

Agree with Dr. @Dr. First Last, I use same criteria as RTOG 1014. In terms of dose/fx, I use 45/1.5 BID but use IMRT instead of 3DCRT with DIBH and CBCT with each fraction.