What is Sjogren's syndrome?
a slowly progressive autoimmune inflammatory disorder associated with lymphoproliferation and mononuclear cell infiltration of the exocrine glands. This condition has a 9:1 female predominance and usually affects patients in midlife. Sjögren syndrome may occur as a primary disorder but commonly presents secondary to another autoimmune disease. This condition most often develops in association with rheumatoid arthritis and systemic lupus erythematosus but also occurs in patients with systemic sclerosis and inflammatory myopathy.