Lee,
I'd like to add my bit as well. Tottally agree with everyone above especially Mark. I was diagnosed with a 2cm AN some years ago and wasn't told of radiation treatment so had surgery. I did't seek out these helpful web sites. Anyway, my an has grown back. Surgery is no guarantee of total removal. My thinking is that if the growth is too close or on the facial nerve, the surgeon didn't risk facial paralysis so left some behind.
Anyway, the approach I had was middle fossa. I changed neurosurgeons and based on recent studies in Europe and his own experiences, he no longer does middle fossa and no longer operates on small an's. I am currently in watch and wait mode with a regrowth sized an at 19mm. It isn't causing me any new symptoms so I am not touching it. I suffer debilitatting headaches every day following the surgery i had.
My next treatment will be GK (CK not available in Oz.
laz