What is the role of lab tests 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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Some laboratory tests can be used to assess salivary and lacrimal involvement in Sjögren syndrome. However, no single test is sufficiently sensitive or specific in the diagnosis of Sjögren syndrome. The condition is properly diagnosed only when the results of various tests are simultaneously positive and when subjective symptoms and serologic abnormalities are present. [63]

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