Sj枚gren's Syndrome (SS) is a chronic autoimmune disorder of the exbaocrine glands with associated lymphocytic infiltrates of the affected glands. SS occurs in a primary form not associated with other diseases and in a secondary form that complicates other rheumatic conditions. In both primary and secondary SS, decreased exocrine gland function leads to the 鈥渟icca complex鈥? a combination of dry eyes (xerophthalmia) and dry mouth (xerostomia). The clinical manifestations also include extraglandular disease features (skin, joints and muscles, lungs, kidneys, gastrointestinal tract). A variety of classification schemes have been proposed and discussed in the literature since the 1980s. The latest criteria, known as the American-European classification criteria for SS, were proposed in 2002. These criteria suggest that diagnosis of primary SS requires 4 of 6 criteria, including a positive minor-salivary biopsy sample and/or SS-A/SS-B antibodies. Therapy can be grouped into two separate aspects: treatment of dry eyes and dry mouth (replacement tears, muscarinic agonist agents鈥? and treatment of extraglandular manifestations (steroidal and non-steroidal anti-inflammatory agents, disease modifying agents, cytotoxic agents and biological therapies).
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