Maybe this is a bit off topic, but I was just reading the newest issue of the MSQR. It doesn't say that a spinal tap is required for diagnosis, unless the patient appears to have PPMS.

They use MRI studies for diagnosis today. They did say the spinal tap was used with the older Poser criteria along with VEP. So today they only do a spinal tap to rule out PPMS?

It certainly can get complicated. No wonder the average doctor has a hard time diagnosing MS.