Fig. 3From: Pneumonitis resulting from radiation and immune checkpoint blockade illustrates characteristic clinical, radiologic and circulating biomarker featuresTimeline demonstrates change in circulating cytokines CXCL2, IL1ra, and IL2ra over the course of pneumonitis. Normal ranges obtained from testing pooled normal serum and the literature: CXCL2 47.8 pg/mL; IL1ra 1.3 pg/mL; IL2ra 1055 pg/mL17; Note: Second blood draw performed on 2/28/18 (at the time the patient developed symptoms consistent with pneumonitis. The CT scan of March 2018 consistent with pneumonitis was performed on 3/12/18Back to article page