Which findings seen on high-resolution chest CT scanning suggest diffuse parenchymal lung diseases (DPLDs)?

Updated: Sep 15, 2020
  • Author: Eleanor M Summerhill, MD, FACP, FCCP; Chief Editor: Zab Mosenifar, MD, FACP, FCCP  more...
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Findings seen on high-resolution chest CT scanning are as follows:

  • Linear reticular opacities are the most common findings.

  • A ground-glass pattern is less common. It is an opacification that does not obscure underlying lung markings and is thought to be a favorable prognostic finding.

  • Airspace consolidation may be present in eosinophilic pneumonia and COP.

  • The presence of nodules suggests HSP, granulomatous disease (eg, sarcoidosis), PLCH, and RBILD.

  • Large cystic spaces may be seen in PLCH and LAM.

  • Honeycombing is indicative of end-stage disease and carries a poor prognosis.

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