All are true about Sjogren syndrome except -
Primary Sjogren's syndrome (PSS) is characterised by lymphocytic infiltration of salivary and lacrimal glands, leading to glandular fibrosis and exocrine failure. The typical age of onset is between 40 and 50, with a 9 : 1 female-to-male ratio. The disease may occur with other autoimmune diseases (secondary Sjogren's syndrome Ref Davidsons 23e p1038.
Interstitial nephritis Subcutaneous fibrosis
Lack of tear
Xerostomia
More common in male
Immune system