Neuropsychiatric Sjögren's Syndrome

Primary Sjögren's syndrome is an autoimmune disease that mainly involves glandular tissue. Despite this, it can potentially develop systemic involvement, within which neuropsychiatric manifestations are common. The clinical presentation may vary widely depending on the domain affected, and may thus be classified into three categories: central nervous system, peripheral nervous system, and psychiatric. Some of these complications share a common pathophysiology, amongst which are vasculitis/ vasculopathy, lymphocytic infiltration and positive antineuronal antibodies. The wide clinical presentation makes it difficult to establish a common diagnostic approach, making it essential for the clinician to recognise and localise the type of compromise, so that diagnostic tools can be more advantageously employed. Treatment must be directed towards the underlying pathophysiology, and depending on the type of compromise, it can even be limited solely to the management of symptoms.