<prompt> Which of the following is are characteristics of the Sjogrens syndrome?Dry eyesDry mouthRheumatoid arthritisAll of the above  <response>: Sjögren syndrome is a chronic, systemic autoimmune disorder that principally involves the salivary and lacrimal glands, resulting in xerostomia dry mouth and xerophthalmia dry eyes. The effects on the eye often are called keratoconjunctivitis sicca sicca means dry, and the clinical presentation of both xerostomia and xerophthalmia is also sometimes called the sicca syndrome. Traditionally, two forms of the disease are recognized:Primary Sjögren syndrome sicca syndrome alone; no other autoimmune disorder is presentSecondary Sjögren syndrome the patient manifests sicca syndrome in addition to another associated autoimmune diseaseSecondary Sjögren syndrome can be associated with almost any other autoimmune disease, but the most common associated disorder is rheumatoid arthritis. About 15 of patients with rheumatoid arthritis have Sjögren syndrome. In addition, secondary Sjögren syndrome may develop in 30 of patients with systemic lupus erythematosus SLE.Reference: ORAL AND MAXILLOFACIAL PATHOLOGY, Neville, FOURTH EDITION page no 434 