I would not offer RT to this patient. If you look at the data, the risk of local recurrence of rectal cancer decreases dramatically as the distance from the anal verge increases, and with proper surgery, is well under 5% (probably 1-2%) for tumors above 10 cm. It is not even clear that the tumor des...

Decisions regarding whether preoperative chemoradiation would be appropriate to recommend are dependent on T category of disease which is not stated. If preoperative imaging demonstrated posterior extension beyond the rectal wall with expected narrow margins of resection relative to the pre-sacrum (...

Yes, preoperatively.