--or involve genetic mutations--there are small fiber neuropathies linked to gluten sensitiivty, diabetes, and the like--and by definition, small-fiber neuropathies are sensory and/or autonomic, as "small" in neurological terms refer to the fibers that control the sensations of pain, temperature, and many autonomic functions.

What I think was meant was that sensory symptoms that accompany that kind of foot arching/hammer toe situation is very likely to be Charcot Marie Tooth syndrome or a related genetic neuropathy--it's a fairly classic symptom presentation.

There are a few other neuropathies that might result in somewhat different types of foot symptoms.

These sites may help to show the different patterns:

http://www.neuro.wustl.edu/neuromuscular/time/hsn.htm

http://www.neuro.wustl.edu/neuromusc...rge+small.html