Figure 1

Chest HRCT scoring system using limited 3 CT levels; based on Kazerooni et al.¹⁴. Example: an example case of a 66-year old female with myeloperoxidase (MPO)-anti-neutrophil cytoplasmic antibody (ANCA)-positive microscopic polyangiitis (MPA) complicated by interstitial lung disease (ILD). GGO ground-glass opacity.