I have never heard of a planned series of radiation or concurrent chemo-radiation treatment stopped early voluntarily. Often a few treatments may be missed or treatment may be stopped early if the patient can no longer tolerate the side effects.

Chemo is combined with radiation to boost the effectiveness of the radiation. Chemo does not kill cancer so it is not a curative treatment. Chemo is not always done concurrent with radiation so it might be possible to stop chemo and continue radiation. Keeping chemo going and stopping radiation would only make sense if the goal changes from curative to palliative and allowing the chemo to stop or reduce the cancer but not kill it.

Given you are just a few steps out of the starting blocks, plan on going the distance and taking each day as it comes. Most generally get a couple weeks of a free ride before the side effects turn up. Stay close here and keep reading and posting for advice as the road gets bumpy. Good luck.

Don
Male, 57 - Great health except C
Dec '12
DX: BOT SCC T2N2bMx, Stage 4a, HPV+, multiple nodes
1 tooth out
Jan '13
2nd tooth out
Tumor Board -induction TPF (3 cycles), seq CRT
4-6/2013
CRT 70gr 2x35, weekly carbo150
ended 5/29,6/4
All the details, join at http://beatdown.cognacom.com