--as all the tests besides the skin biopsy came out negative or normal, including tests for specific anitbodies.

However, in the acute phase of my syndrome, the Cornell-Weill Center's own test for ganglioside agglutinins--a sort of gross measure of autoantibody activity to components of peripheral nerve--showed up as a slight positive. The interpretation of this is that I had some sort of antibody activity going on, but it may have been antibodies unique to me and my molecular configurations, not one to components of nerve everyone has (and that could have been identified, such as antisulfatide, anti-MAG, anti-GQB, GM, Hu, etc.)

Autoantibody activity is a fascinating topic, and everyone with a "cryptic" neuropathy should have testing done beyond the usual anti-nuclear antibody types that rheumatologists usually test. A good list is found here (and a lot of us use these spreadsheets as a guide to testing in general, as well as a way to track to test results over time):

www.lizajane.com