I was in a similar boat, diagnosed with a 2.6 cm AN at 34 years old, with good hearing and relatively mild symptoms. My instinct was the same as yours: avoid surgery if possible. What I have learned suggests that on average, quality of life is generally better after radiation as compared to surgery. I suspect this is even more true with larger tumors like mine and yours, where surgery presents higher risks of hearing loss and facial nerve damage. In my case, the probabilities of losing hearing in surgery was essentially 100% (v. 75% hearing
preservation w/ Cyberknife). The risk of facial nerve damage was variously quoted to me as between 10 - 20% (versus a negligible risk with Cyberknife).
That said, there are certain circumstances where radiation is simply not an option or a bad idea, and the size of your tumor means you need to be careful in making sure radiation is a safe and advisable option in your case. Though 3 cm or so (sometimes bigger) is generally the cut off, the location of your tumor could rule out radiation. As much as I hated the idea of surgery, I had to keep my mind open to that possibility if the realities of my situation required it.
Like you, I was told by the first two doctors I saw (including one neurosurgeon who is
highly renowned) that surgery would be necessary because of the location of my tumor. It was only when I consulted with neurosurgeons trained and experienced in radiosurgery that I received opinions saying radiation was perfectly feasible and a good option in my case. I have no idea how the first two doctors could have been so cruelly negligent in the information they provided to me. I chalk it up to extreme bias caused by their narrow training in microsurgery (and their limited experience treating ANs). My point here is that you need to speak to a few doctors at least -- and not just general neurosurgeons. Ideally, consult with neurosurgeons who are experienced treating ANs on a regular basis using both surgery and radiation.
I believe a fellow whose screenname is "jb" recently had Cyberknife done at Georgetown. His AN was around 2.5 - 3 cm as well. Definitely check out the CK team at Georgetown if you are able and think about emailing jb directly to hear about his experience.
Also, here is a link to an email exchange between myself and a couple of the doctors on the Cyberknife Patient Support Forum (Steve linked to it in his post above). If you read through the emails, you will get some sense of the decision-making process I was going through right after my diagnosis:
http://www.cyberknifesupport.org/forum/default.aspx?f=14&m=13837I had CK in August 2007 and after 8 months of feeling tired and quite horrible (but not missing any work), I'm now totally active again - running, mountain biking, etc. I do have mild symptoms but I am doing everything I was doing before the treatment. I expect even the mild symptoms will continue to improve with time.
Please email any time at all if you have any questions about my experience.
Special note to LADavid: everything I've read on this forum says you will improve with time, slowly but surely -- stay strong and hopeful. I know there is a purpose in what this condition has brought our way.
Good luck and be well.
Francesco