Lung Ultrasound in Children With Systemic Juvenile Idiopathic Arthritis–Associated Interstitial Lung Disease

Objective Systemic juvenile idiopathic arthritis (JIA) associated with lung disease (JIA‐LD) is a potentially life threating complication in children with systemic JIA. Although high‐resolution computed tomography (HRCT) is considered the gold standard imaging modality for evaluating interstitial lung disease (ILD), lung ultrasound (US) has shown utility for ILD screening in adults with connective tissue diseases at lower cost and without using ionizing radiation. The goals of this pilot study were to describe lung US features in children with known systemic JIA‐LD and to assess the feasibility of lung US in this population. Methods Children age