Chest radiography and thoracic CT typically show widespread nodular and/or fine linear (reticular) shadowing in fibrotic lung disease. As noted, high-resolution CT usually confirms the diagnosis, and the fibrosis score can help determine prognosis.
Honeycombing is a late finding which carries a poor prognosis.
The presence of nodules may be indicative of hypersensitivity pneumonitis, granulomatous disease, pulmonary Langerhans cell histiocytosis, and respiratory bronchiolitis interstitial lung disease.
A less-common finding of a ground-glass pattern is thought to carry a favorable prognosis.
Learn more about imaging studies of PF-ILD.
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Cite this: Zab Mosenifar. Fast Five Quiz: Progressive Fibrosing Interstitial Lung Disease Presentation and Diagnosis - Medscape - Jun 16, 2022.