What is the role of serum protein electrophoresis in the diagnosis of Sjögren syndrome?

Updated: Mar 05, 2021
  • Author: Sriya K Ranatunga, MD, MPH; Chief Editor: Herbert S Diamond, MD  more...
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Patients with Sjögren syndrome often have a polyclonal gammopathy. Loss of a previously detected polyclonal gammopathy can be observed in some patients with Sjögren syndrome who develop lymphoma. Development of a monoclonal gammopathy can also signal the development of a lymphoma.

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