Hi, Brandi ~
As an AN patient who had a 4.5 cm AN surgically reduced ('debulked') and the tumor's blood supply severed, then underwent 26 FSR treatments to destroy it's ability to re-grow (it didn't) I would suggest an MRI at five-year intervals, which, in your case, would be this year. If no growth is indicated on this year's MRI, I would assume your neurosurgeon would not require any further MRI scans as you would be 10 years post-op with no growth.
However, I must add the caveat that I'm not a physician, only a patient, and cannot offer anything but a patients unprofessional opinion. I think I can speak for the many other posters on these forums when I make the statement that, although we have, collectively, a wealth of practical experience dealing with an acoustic neuroma and all the varied issues that are associated with the tumor, surgery and/or radiation, we are not licensed doctors and are not offering medical advice. I'm sure you realize this but I thought it was prudent to state it at the outset, just to be clear.
Obviously, your neurosurgeon will give you his professional opinion on when to schedule an MRI. He may want you to have one this year (5 years post GK) but perhaps not. My neurosurgeon had me undergo frequent MRI scans following my surgery and radiation but the last (2008) showed definite necrosis and the tumor remnant had began to shrink. In addition, my recovery had been excellent (no issues) and at that point he didn't believe further MRI scans were necessary. This neurosurgeon had over 3 decades of experience with AN patients and was extremely knowledgeable. I may have a follow-up MRI next year, if his successor (he retired) asks me to do so but if she does not, I'll forgo the MRI unless I notice AN symptoms recurring, and believe me, I'm very alert to that happening but so far, so good. I hope you have a similar outcome.
Jim
