Hey Pam and welcome back! Honestly, you are the first person I know that had GK at Tufts (I researched them when I was doing my radio-research) and would love for you to keep us updated.
Please keep in mind that head MRI's have a total margin of error of +/- 2mm, so if the MRI is showing change by 2mm, you are certainly within that margin of error... meaning, possible no change. Different MRI machine, different "slices" of views... even different people reading it would make the 2mm difference. Heck, my team at Beth Israel read it differently. My radio-doc will measure my AN.. then, same team, my neuro onc, will measure it... and for both being on the same team, they will give me different measurements (I laugh each time they do). So, I'm hoping that the margin of error is what is coming into play.
Balance issues can come into play post-radio (even post surgical) AN treatment. Not sure if you have had the chance to read the "Balance" forum here... may be worth a peek. I know of some that have noted it, post-treatment, and give terrific suggestions as to counter-acting the balance issues. Just a thought.....
Thrilled to hear that life is treating you well and that you are doing well. Please keep us updated on your January MRI.... and thank you so much for sharing this... and most of all... welcome back!
Phyl