For path CR after neoadjuvant chemotherapy in breast cancer with sentinel node (2-3 nodes) negative but >4 nodes positive on initial PET, do you boost the nodes not assessed by sentinel node?  

I have boosted the epicenter of these undissected nodes if can identify on CT sim for planning. For CR or pCR in other nodes usually use 56 to 60 Gy and if non pCR or nodes are still enlarged (like IM or s\c) to 60 to 66 Gy.