Hello Laura,
Welcome to the NeuroTalk Support Groups.

I am guessing that you've been reading on the Spinal forum. Here is the link below.
Spinal Disorders & Back Pain Forum

In one of the 'Sticky' threads at the top of that main forum is a thread that may help you decipher your results.

Medical Dictionary & MRI/CT Terminology

I'm sorry you're feeling scared about your results and are worried if you need surgery or not. The best person to talk to about that is your doctor. Hopefully you don't have to wait very long. I also hope that you get some relief in the meantime from the Gabapentin.