Interpretation: use of autoantibodies in children.

Judicious use of autoantibodies in paediatrics can be challenging. Autoimmune conditions can present with a wide range of signs and symptoms, many of which are non-specific. In combination with clinical features and laboratory findings, autoantibodies can facilitate diagnosis and in certain cases inform prognosis. Evidence for use of autoantibodies to guide and monitor treatment is limited. Caution is necessary when interpreting adult studies. We summarise the use of autoantibodies in paediatric practice with a guide on how they may be used.