Figure 4.

A-C, Qualitative severity of e-cigarette or vaping-induced lung injury (EVALI). A, CT scan of a 40-year-old woman with a lower-lobe predominant organizing pneumonia (OP) pattern shows subpleural bands of ground-glass opacity (GGO) in the lower lobes. This injury was qualitatively graded as mild. B, CT scan of a 31-year-old man with a diffuse GGO OP pattern shows a qualitatively moderate lung injury with axially diffuse GGO, crazy-paving, and subpleural and lobular sparing. C, CT scan of a 36-year-old man who vaped both tetrahydrocannabinol and nicotine products daily shows a qualitatively severe injury with diffuse GGO with subpleural sparing. There is inferior mild displacement of the fissures (arrowhead) and areas of multifocal bronchial dilation (arrow). The patient was classified as having a diffuse alveolar damage pattern.