Which CNS findings suggest Sjögren syndrome?

Updated: Mar 05, 2021
  • Author: Sriya K Ranatunga, MD, MPH; Chief Editor: Herbert S Diamond, MD  more...
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Isolated cranial nerve involvement rarely occurs in primary Sjögren syndrome. CNS involvement also is less common (10-25% of patients with Sjögren syndrome) than are other types of involvement; CNS pathology ranges from neuropathy, hemiparesis, transverse myelitis, and dystonia to encephalopathy and dementia.

In Sjögren syndrome, focal brain lesions can be present in the cerebral white matter. In addition, dysregulation of hypothalamic-pituitary-adrenal and thyroid axes can cause some neurologic disturbances.

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