Hopefully it's something more minor. My understanding of CSF leaks (as little as I've read about them) is that they are mostly caused by defects in the skull. As you note, most are caused by blunt trauma to the head. I've never heard the idea that it could be caused by a tumour before.
Hopefully the results turn up negative for cancer though. Certainly keep us in the loop about how you're doing.
- FahadRashid327 likes this