@as72: I had a 2.7 centimeter meningioma removed, via surgery (a craniotomy) 2 years ago. Dr. Theodosopoulos stated to me that if the other 2 remaining meningiomas I do have become a problem (they are 6mm & 8mm) I will need to have radiation. And he said that he "runs" the radiation clinic. Am also sending you a private message.