CTICasesCOVID-19 Organizing Pneumonia
Imaging findings
CT chest shows bilateral, peripheral ground-glass opacities, consolidations, subpleural sparing, and reverse halo signs (atoll sign), with subtle traction bronchiectasis and architectural distortion pulling on the adjacent fissures. The patient recently traveled to New York.
Key takeaways
COVID-19 pneumonia frequently manifests as an organizing pneumonia pattern. Key imaging features include peripheral ground-glass opacities, subpleural sparing, consolidations, and reverse halo signs. Associated findings include focal architectural distortion and bronchial dilatation, representing acute lung injury rather than permanent fibrosis.
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