CTICasesOrganizing Diffuse Alveolar Damage post COVID-19
Imaging findings
CT chest in a patient post-COVID-19 infection who spent weeks on mechanical ventilation shows coarse reticulation, architectural distortion, and traction bronchiectasis predominantly involving the anterior upper lobes, with relative sparing of the lower lobes.
Key takeaways
Organizing diffuse alveolar damage (DAD) is the late fibrotic phase of ARDS. In survivors of severe COVID-19 pneumonia, CT shows fibrotic changes (reticulation, bronchiectasis) that favor the anterior, non-dependent lung zones. This distribution may be related to ventilator-induced lung injury (barotrauma/volutrauma) in the non-dependent zones.
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See all cases from April 16, 2020 →