Hah! I should know there's no such thing as a "quick" question when it comes to ANs, but when I met with the neurosurg counterpart of the surgical team, it was agreed that until they get in there, they don't know whether the tumor is free and clear or mucked up and between the nerves. He agreed that sometimes it happens that they might leave a bit of tumor to save, for instance, the facial nerve. If I heard correctly, he said they would then do radiation. Did I hear correctly?
In my case, I know I will lose my hearing - and that's fine - it's already very minimal. I am concerned about rehabbing my balance however (which is out of whack), and it's agreed that cutting the balance nerve is the best way to accomplish this by letting your brain adjust without the misfires that would continue to occur if radiation was used.
So. They go in, cut the hearing nerve and cut the balance nerve. Maybe they notice the tumor is wrapped around the facial which further surgical intervention might screw up. So they tenderly remove what they can and leave some of the tumor stuck to the facial nerve so no damage takes place.
They then recommend radiation, specifically for the facial nerve/tumor ... since the other two nerves are already a done deal, radiation can do no further damage, and the final hope would be for radiation to do what surgery couldn't ... get rid of (kill) the tumor on the facial nerve without damaging the facial nerve.
Have I got my stories straight??
Ok - one more quick question ...
How does radiation avoid killing the facial nerve if the tumor is tangled up in it? I know it's precise placement, but do they only need to zap a portion of the tumor to get it to die?