Sjögren Syndrome (Sjögren's Syndrome) By Alana M Nevares, MD, The University of Vermont Medical Center Reviewed / Revised Oct 2022 View Patient Education Pathophysiology Symptoms and Signs Diagnosis Prognosis Treatment Key Points More Information Topic Resources Sjögren Syndrome (Tongue) EULAR / ACR Criteria for the... Sjögren syndrome is a relatively common chronic, autoimmune, systemic, inflammatory disorder of unknown cause.