Thanks, Dahlek, the pdf file especially is good, a list of the w/u for small fiber neuropathy.

But I noticed something interesting on the mass general site. They list skin biopsy for sfn as if it's an illness, and don't list "peripheral neuropathy" at all as something they specialize in. It seems there is a great deal of interest these days in small fiber neuropathies, and I'm not exactly sure why, except that there's a new way to measure it.

I'm still in the idiopathic wastebasket, myself, but I do not have a small fiber neuropathy, mine is "length-dependent" which actually hits larger nerves. That's why reflexes are down. Small fiber neuropathy doesn't take out the reflexes until very late.

But it's weird, in the list of neurological illnesses mgh specializes in, peripheral neuropathy is noteworthy by its absence.