Thank you for your question,
I’m Dr. Saha and I’ll try to help you.
I would advise to have the surgery done.
The type of surgery can vary.
It depends on the extent of the cancer but it is less extensive than other cancer surgery.
So the risk of surgery is also less.
It is necessary to get the cancer out.
It is a slow growing cancer but left untreated it can erode the neighboring structures, bones.
I feel he should not try other treatments like diet, holistic etc.
I hope this information helps.
I will be happy to assist, if you need any clarification.
Please feel free for any follow up query.