This is an excellent site for expaining some fo the tests that diagnose Sjogren's,
http://www.rheumatology.org/public/f...ogrens_new.asp
But sometimes Sjjogren's doesn't fit into the textbook categories. I had the dreaded mouth biopsy here in Texas but Mayo refused to accept it. So I had it done again there. It was difficult to cope with but it was done correctly and healed pretty well in about a weeks time. At least enough not to bother me.
I'm sero negative and it is affecting my nervous system. I will likely have to go to IVIG soon. I'm scheduled for a checkup with my neuro soon.
Mayo diagnosed me with small fiber and axonal neuropathy from Sjogren's Syndrome. I also have the dry eyes, nose, mouth and lots of digestive problems.
I wish you luck with your testing.
Billye