dchrzano: How long did you have to be on the steroids? When I consulted with the neuro-oncologist, he only mentioned possible swelling immediately after the procedure. My 8 mm and 6 mm meningiomas haven't grown in 2 years but I know if they do grow, gamma knife will be on the schedule. And I'm not looking forward to it. Radiation scares me more than the craniotomy I had for a third one. And being on a prolonged course of steroids is one of the things that bothers me.