What's the name of this Brain Surgery?

Question

my friend's friend just had brain surgery where her brain was going down into her spine or something. Do you know what that's called?

Answer 1

It sounds like your friend had a Chiari Malformation. There are a couple possible surgeries for it.

The first is posterior fossa decompression surgery. In this surgery the surgeon would make an incision in the back of your friends head and remove a small portion of the bottom of the skull.

The second would be a spinal laminectomy, where the surgeon would remove part of the spinal lamina to give the brain more room.

It's also possible that the surgeons inserted a shunt into the head or spine to help with fluid drainage.

Without more information that is the most I could tell you.