Primary Sjögren syndrome occurs when

Question

Quizplus · Accepted Answer

Primary Sjögren syndrome occurs when there is only salivary and lacrimal gland involvement without the presence of another autoimmune disease. Secondary Sjögren syndrome occurs when another autoimmune condition accompanies the salivary and lacrimal gland involvement. Rheumatoid arthritis is an autoimmune disease that can be a component of secondary Sjögren syndrome. Twenty percent of patients with Sjögren syndrome have Raynaud phenomenon. It is characterized by pallor of the skin that results from vasoconstriction and reduced blood flow. The toes and fingers are affected.

Primary Sjögren Syndrome Occurs When