Cryptogenic organizing pneumonia CT

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

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CT

A CT scan may be used to confirm the diagnosis.

HRCT

On HRCT, airspace consolidation with air bronchograms is present in more than 90% of patients, often with a lower zone predominance. A subpleural or peribronchiolar distribution is noted in up to 50% of patients. Ground glass or hazy opacities associated with the consolidation are detected in most patients. Pulmonary physiology is restrictive with a reduced DLCO. Airflow limitation is uncommon; gas exchange is usually abnormal and mild hypoxemia is common.