Haven't found anyone on this Mayo Clinic site that has what I have. Not possible that I am that unique. WHAT is the cause is my biggest question that goes unanswered. AND how to get rid of the remaining issues from the neuropathy. 100's of tests have ruled out all the usual suspects. Opinions from the Dr's go from shrugging their shoulders to thinking what I had/have is a one off occurrance. Knowing why might help me to know how to avoid it from worsening or even help to me get rid of the remaining cinched up torso muscles from the large fiber neuropathy and small fiber neuropathy that remains around my body. I suspect the steroid treatment I had in pills and IV and more pills over a month or so in 23/24 relieved me from the unbearable pain and burning in my torso and leg. Just want/need to know more. Anyone know of another site that might have info about Thoracic Polyneuropathy.