Hmmm ~ According to this, you just have a couple of cysts on the covering of the nerve roots which are pretty common. This wouldn't accord for your numbness.
I think I'd take my films and have another radiologist read them if I were you. Now I'm not sure if you'll get one to do it. They're kinda "funny" about that from what I hear, but they might do it for a small fee. I really don't know. I've never had this happen.
There MUST be something that would explain your leg numbness.
![Confused](images/smilies/confused.gif)
And it has to be in the spine! Perhaps they need to look higher up -- although I doubt it.
See what another radiologist has to say, and let us know ok? I'd be REALLY interested in this, so PLEASE let me know, huh? Thanks. Hugs, Lee