On HRCT images, IPF is typically characterized by patchy, peripheral, subpleural, and bibasilar reticular opacities.
HRCT findings that are usually suggestive of alternate diagnoses include predominantly ground-glass opacities (nonspecific interstitial lung disease), cysts, lymph node enlargement (sarcoidosis), pleural plaques (consider asbestosis), dilated esophagus (consider connective tissue disorder), and distal clavicular erosions (consider rheumatoid arthritis).
Learn more about the workup for IPF.
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Cite this: Ani Kapoor, Zab Mosenifar. Fast Five Quiz: Idiopathic Pulmonary Fibrosis Imaging - Medscape - Feb 17, 2023.