CTICasesChronic Eosinophilic Pneumonia
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Imaging findings
High-resolution CT shows bilateral areas of peripheral consolidation and ground-glass opacity, demonstrating a distribution that can mimic organizing pneumonia and present with features like the reverse halo sign.
Key takeaways
Chronic eosinophilic pneumonia and organizing pneumonia share identical imaging features because both represent injury occurring at the junction between the capillary endothelium and the type I pneumocyte basement membrane. While organizing pneumonia is more common, chronic eosinophilic pneumonia should be considered in asthmatic patients with elevated IgE levels, and can be confirmed via bronchoscopy.
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