Is there a role for a post-operative boost in a patient with rectal cancer who has a positive margin after total neoadjuvant chemo and chemoradiation therapy?  

As is usually the case with questions of this sort there is not just a yes or no answer. First, we rarely use a postop boost as if we have concerns about the circumferential margin on our initial evaluation, we set up the patient for intraoperative RT. IORT has big advantages in giving a very high l...