The original post: /r/askscience by /u/blueocean43 on 2025-03-07 23:51:28.

So a large meningioma pushes the brain out of the way as it grows, right? So if it needs to be removed for any reason, what does the surgeon do about the hole left afterwards? Does the brain spring back (and if so, does that damage it), or does it fill with fluid, or does the surgeon have to put something in it?