First, they will want to rush him into chemo and radiation so that they can collect as much money as they can before he passes. Sad but true.
Second, nobody gets cancer because they did not get enough radiation or poison through chemo.
Cancer is the product of excess poisons and excess radiation or in some cases, a viral infection, and an impaired immune system.
The only hope is to fix the immune system.
I suggest http://www.cancertutor.com . It is absolutely the most authoritative site to be found. The ACS ( American Cancer Society ) is the last source that I would consider. They are nothing but a money funnel and propaganda promoters. I have never seen one single productive result of their existence.