How would you interpret the following lab?
My understanding was chances of Lupus (SLE) is low if Sm antibodies and dsDNA is negative? My reference book tells me otherwise. The antibodies overlap in each disease. I am having difficulty how to distinguish between Lupus with secondary Sjogren's (Vs.) primary Sjogren's?
Based on above lab, my diagnosis is Scleroderma and Sjogren's Syndrome? I might be wrong but help me out here.
Q 1. But could it be primary SLE with secondary Sjogren's?
Q 2. Could it be just SLE? (which I doubt but help me please)
Q.3. Could it be just Sjogren's?