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Coccidioidomycosis-Induced Organizing Pneumonia

Imaging findings

CT chest shows multiple, patchy consolidations with surrounding ground-glass halos in an organizing pneumonia pattern, with peripheral eosinophilia. Biopsy and serology confirmed Coccidioides immitis infection.

Key takeaways

Coccidioidomycosis can trigger a secondary immunological reaction, manifesting as organizing pneumonia or eosinophilic pneumonia. In patients from endemic areas, checking for fungal serology is important prior to initiating corticosteroid therapy to avoid fungal dissemination.

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