Hi (me, again) Ellen!
Good to see you back. Thanks so much for your mom's update. I hope you enjoyed a wonderful Mother's Day together.
In all honesty, I do want to share that head MRI's have a margin of error of +/-2mm, so honestly, your mom is right on that line of margin of error (from 3mm x 4mm to 6mm x 4mm, but unsure what was the time difference between the 2 sets of films), thus, it could have grown very miminally, or not at all. That is still a very small AN and, to me, I would really make sure you cover all bases, consult with many neurosurgeons (locally as well as HEI, which you have already done), as well as research some radio-surgery options, esp. on an AN that size and most importantly, speak to as many other patients as possible (the ANA does offer a Willing-to-Talk list of folks that volunteer time to speak on the phone with others). My concern, to me, would be her age... there are some that report that the older you get, an AN may tend to slow in growth. Yet, as we know, "individual results may vary".
I know, from what you share, mom is having a bit of a time, esp. with balance. As we know, regardless of which treatment option, AN's tend to affect the balance, so, there are ways to try to help counteract with meds and vestibular exercises. Many An'ers that have had surgery... or have had radiosurgery, complain of balance issues. Please take a quick peek at the "Balance Issues" forum on the dicussion forum home page. There may be some helpful info there.
suggestion would be to contact the ANA office directly (go to the home page here --
www.anausa.org -- for info on how to contact them). They have a wealth of info... and maybe have up-to-date key info that you may find helpful.
Please tell mom to hang in there... and you too!
Phyl