Hi Kat, try not to take one places or Dr. opinion as radiosurgery has been done for 30+ years with many good outcomes long term. As in all cases, we are each individuals whose bodies respond to the different treatments in unique ways. If USC specializes in microsurgery you can bet they will find fault with radiosurgery any chance they get. And I dare say, were many of the Drs who specialize in microsurgery afflicted with this stupid tumor they would strongly consider radiosurgery themselves.
When talking to three different doctors at the Mayfield Clinic (well versed in AN experience) I still had the first surgeon I spoke with tell me my tumor was too big for radiation, while two others said "definitely not" too big for it. The second doctor was a neurosurgeon as well who specialized in different microsurgies for other tumors, but also specialized in radiosurgery for AN's. The third was a radiologist so he could be biased toward his only specialty of course just like the microsurgery only specialist was.
I asked both doctors who specialized in radiosurgery if they would recommend it were I someone from their own family and they said yes. Could they say that and be lying because they wanted to treat me? Possibly....but considering their length of doctoral experience I tended to take it at face value.
http://ucneuroscience.com/blog/symposium-shines-bright-light-on-acoustic-neuroma/The Dr. Yang video link Sandy posted is great and was a big help when I found it making my decisions 6+ months ago.
It's a tough decision, one you will waffle on at times as is normal when making a decision of this importance that carries differing risks for each type treatment. At some point you will make a decision and be at peace with it I believe. What I did, was research all the options, then when I made my decision I stopped researching more as I felt I had the knowledge to make an informed educated decision that was best for me.
If I made a decision then kept researching further I'd probably still be procrastinating and researching today lol. Bottom line I could care less what anyone else chose for their treatment now and have zero desire to second guess myself as that would provide zero comfort to me.
Good luck with whatever treatment you choose as it will be the best choice for
you.