Pricey test: This is an assay for a host of autoantibodies that cause various problems, usually with the nervous system. They are usually produced as a result of cancer somewhere in the body and it's surprising but not outrageous to have them ordered in the absence of a tumor diagnosis if you're symptomatic. I trust neuropathies (diabetes amyloid), CNS disease have been considered.
Answered 3/26/2016
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