that shows a huge number of people originally diagnosed with idiopathic PN actually do find a cause if they check into a neuromuscular specialty center. So that's good news.

Hey, LJ, small fiber is pretty much by definition axonal. There's no myelin on those fibers to lose, and the only other option is really neuronal death, but re-branching in skin grafts suggests a lot of SFPNers still have live neurons. The small fibers have different structures, so they can be differentially hosed by autoimmune responses that leave large fibers alone. But they are also, well, small--very delicate, which makes them a lot more prone to hurt from certain conditions.

Mel, one thing to realize about those charts. Doctors can't see your results all in one place, not even on their PCs; I've watched them page from screen to screen, or have to click on things to get numbers. The beauty of those charts is that they put everything together at a glance, so a doc can see trends, pick up on things they overlooked or (often) spot tests that are completely missing.