Figure 2.

Pulmonary screening algorithm for lung disease in patients with sJIA. The approved algorithm outlines a consensus‐based approach to pulmonary screening for LD in patients with sJIA at our center. Patients with newly diagnosed sJIA and at least one red flag feature are referred for pulmonary evaluation and follow up. ^†This algorithm was developed for educational purposes only and for use in the Rheumatology and Pulmonary Programs at Boston Children's Hospital. Decisions about evaluation and treatment are the responsibility of the treating clinician and should always be tailored to individual clinical circumstances. AEC, absolute eosinophil count; BAL, bronchoalveolar lavage; CT, computed tomography; CXR, chest x‐ray; DLCO, diffusing capacity for carbon monoxide; HLA, human leukocyte antigen; IL, interleukin; ICU, intensive care unit; JIA, juvenile idiopathic arthritis; MAS, macrophage activation syndrome; PFT, pulmonary function test; sIL‐2R, soluble IL‐2 receptor; sJIA, systemic juvenile idiopathic arthritis.