Hi jmb73, I had gamma knife surgery in Aug 2017 at Mayo in Rochester, MN. I had 2 recurrent meningioma tumors from one that I originally had in 2001. I had the original one in 2001 removed surgically by a neurosurgeon in Atlanta, which is where I live. When I had an mri in June 2017 due to vertigo, it showed that I had 2 meningiomas, both were much smaller than my original one. I went to Mayo clinic and met with Dr. Terry Burns (neurosurgeon). He recommended I have gamma knife radio surgery. I had it done at Mayo with Dr. Burns and Dr. Brown. Both of the 2 recurrent meningiomas were treated in one gamma knife procedure. It was done in one day as outpatient surgery. I stayed in my hotel that night and stayed in Rochester for two more days and then flew home to Atlanta with no problems. The only side effect from gamma knife that I experienced was that starting the next day, under my eyes got puffy for a few days. Dr. Burns said that is fairly common. I went back to Mayo in Aug 2018 for my one year follow up MRI and appointment with Dr. Burns. The meningiomas were stable. They had not gotten any bigger, which was the goal of gamma knife - to stop them from growing. The MRI showed they actually may have been very slightly smaller. So I consider it very successful for me and much easier and safer than traditional brain surgery. And yes, it is possible to have additional meningiomas either from recurrences or new ones. If I can answer any questions for you, let me know.
Jill