Thanks Russ and Larry for your replies. The Drs. who reviewed my scans are all from the Brain Tumor Institiute of Cleveland Clinic. There were many different Drs. at that meeting, and they were divided as to an answer. The location of the tumor is in the same place as an AN (CPA), and there is no visible "dural tail" which would point to an AN, but the characteristics of the tumor itself look like meningioma.
This is the second team of Drs. I have seen, and three different radiologists have read the scans. Since the first MRI, there has been some question about the type of tumor, but I thought this team was more sure of the AN diagnosis, until my last scan.
Normally, a meningioma would be at an easier place to "get to" with surgery, but they do happen in the CPA. This one gives me all the same risks as AN surgery, with the additional burden of a tumor that is more likely to recur. (If it is meningioma.)
I'm still concerned about the NF2 connection with a menigioma, as my daughter was born with a cataract. My Dr. says my brain does not look like one of an NF2 patient (but that doesn't stop my fears for my daughter).
If I did have NF2, is radiation less likely to work for me? Any ideas would be appreciated.
vjh