grade 3 meningioma

Hi had op 10wks ago all good but 2% left don't fancy the side affects of Radiotherapy is it worth the risks involved..

I'm a 69 male fit not over weight more or less vegan don't eat processed food sugar or dairy 

Would rather have a couple of good years I instead of poorly for 10yrs what's your thoughts  can't find much info on the web

Thanks for your time 

X RIK