IFIH1 and interstitial lung disease: The anti-MDA5 autoantibody subgroup of JDM is characterized by increased cutaneous ulceration and interstitial lung disease (ILD) with less muscle disease [1–3], also observed in our cohort, with more overlap with these vasculopathic features seen in SAVI than CANDLE in general [15–17], also specifically observed in our cohort.