Sjogren's syndrome/Definition

Chronic inflammatory and autoimmune disease in which the salivary and lacrimal glands undergo progressive destruction by lymphocytes and plasma cells resulting in decreased production of saliva and tears. The primary form, often called sicca syndrome, involves both keratoconjunctivitis sicca and xerostomia. The secondary form includes, in addition, the presence of a connective tissue disease, usually rheumatoid arthritis.

This definition is at least in part based on: Anonymous (2023), Sjogren's syndrome (English). Medical Subject Headings. U.S. National Library of Medicine.