CTICasesEVALI (Two Cases with Peribronchovascular Sparing)
[...]. EVALI (Two Cases with Peribronchovascular Sparing). CTICases. Published March 12, 2021. https://cticases.com/c/zyf9e
Imaging findings
Two separate young patients presenting within 48 hours of each other with acute respiratory symptoms demonstrate CT findings of bilateral consolidative and ground-glass opacities with a striking peribronchovascular sparing pattern and subpleural sparing, classic for EVALI. Both patients were habitual THC/marijuana vapers; one had recently switched from smoking to vaping.
Key takeaways
EVALI (e-cigarette or vaping product use-associated lung injury) characteristically shows bilateral consolidation with a peribronchovascular distribution of sparing on CT, reflecting relative preservation of peribronchial tissue. Subpleural sparing, which mimics organizing pneumonia, is also a notable feature. The striking peribronchovascular sparing is a key differentiating feature from COVID-19 pneumonia.
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