Hi,
I've been tested for Sjogrens because of the severe PN symtoms, also have dry eyes......

Even though I have a normal ANA they belleve I have an auto-mmune PN - and tested for Sjogrens from least to most invasive test..... SSA and SSB are only blood tests - very easy... if those are negative they may move you on to the eye test (Schwimmes) also very easy... and lastly the salivary gland biopsys (that hurts)..... I tested negative on everything except the eye test - which really just showed them I have dry eyes and they have me use just an eye rinse to keep the from hurting too much....

So in answer, I think its prudent to have them use the specific tests for Sjogrens to rule it out........