There are options that are curative, depending on the biopsy.
You can not predict which is best before the biopsy.
To me, the newest and least invasive is proton beam therapy.
That is for cancer that is contained.
Depending on the biopsy, at age 86, it might be a non aggressive cancer and you can simply follow it.
Here is a mayo clinic write up on treatment options.
cyberknife is robotic surgery. you will see this listed on the options.
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