sig67: I had a craniotomy at UCSF eleven months ago to remove a meningioma. I am now under the watch-and-wait protocol for 2 other meningiomas. Six months ago the neurologist offered I may have to have them radiated. I have a follow up MRI in October. In some ways I'm more afraid of the radiation than the surgery. After having the craniotomy, how traumatic (for lack of a better word) was the gamma knife treatment?