Table 5b.

Mechanisms of lung injury and radiology findings for non-USA cases.

Proposed mechanisms of lung injury	CXR findings	CT findings
Hypersensitivity pneumonitis	Not mentioned	Bilateral ground glass changes in the upper and mid-zones with perihilar bronchial wall thickening and retained secretions in the dependant airways
Bronchiolitis obliterans	Diffuse micronodular opacities in both lungs	Diffuse bronchiolitis manifested by innumerable tree-in-bud opacities throughout both lungs with subpleural sparing
Unspecified EVALI	Not mentioned	Bilateral poorly defined centrilobular nodular infiltrates with bronchial wall thickening
Unspecified EVALI	Not mentioned	Diffuse ground-glass opacities consistent with diffuse alveolar haemorrhage
Unspecified EVALI	Left lower alveolar infiltrates	Bilateral lower lobe consolidation with air bronchograms, pleural effusion and peri-bronchial ground glass opacities in the upper and medium right lung
Lipoid pneumonia	Bilateral diffuse infiltrates throughout both lung fields	Diffuse ground-glass opacity and subpleural cysts bilaterally
Toxic pneumonitis and areas with organising pneumonia	Not mentioned	Hilar lymphadenopathy, fibrotic areas, diffuse ground-glass opacities