It will. His particular type of cancer is rare, but is very aggressive. Since it is in his somewhat of a brain, its inoperable. He has less than a year, and maybe only 6 months or less, depending on how long its been infesting inside him. Information has been limited, but it may have already spread and he might be a stage 4 at this time. Most don’t live out the year when diagnosed. I have a nephew ( 11 year old ) with the same cancer, but his lodged in his neck just below his brain, so they were able to remove the tumor, but the doctors in SF said it will come back and when it does, he will maybe have 2 weeks. In the meantime, he bought 2 years, however he is paralyzed. Nasty type of cancer. No cure at this time.
I’m so sorry.