Hannah --
My sample was taken behine the ankle bone and maybe like and inch up (toward leg) I am not sure how this was classified but I am confident that my neuro picked usable sites for the biopsy (she is an SFN neurologist who does them for Ohio State on a monthly basis), Maybe this means that it is a more general area needed to look at the nerves? I am not sure ... where was yours taken?
Oh dont worry about the amount of questions!

Glad to help