A member asked:

Recently had a skin biopsy for small fiber neuropathy that came back negative. the density however cane back at 14 and 8 for other leg. what could cause such a difference between 2 legs? thank you

A doctor has provided 1 answer

Confusing result: St’d protocol is a 3 or 4 site biopsy on ONE leg. Most cases of SFN are length dependent disorders. Left vrs right comparisons can be misleading. Talk to your doctor about where the samples were taken

Answered 1/3/2021

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