Discussion
I made that too but in illustrator
What I understand from your picture is that there is an mal formation (in purple) that connects a branch from the vertebral artery and a vertebral dural vein.
Cerebellar tonsils can descend up to 5mm from the Foramen Magnum. More than that, without other findings, it is Chiari I
You're talking about holocord syrinx right?
No, I'm talking something like this:
https://rrtjournal.biomedcentral.com/articles/10.1186/s41100-018-0185-4
