Ground glass

  • Ground glass can be called on CXR per Fleischner society guidelines
  • Make sure to rule out ground glass mimics before
  • Expiratory CT can look like ground glass
    • Clues that CT was taken during expiration:
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  • Diffuse implies that distribution is uniform
    • Extensive does not
  • Avoid using airspace or interstitial as this creates false delineations when in reality ground glass usually affects both
  • In general as well (not just in regards to ground glass) do not use the word infiltrate— use consolidation or whatever else you want to say that is more descriptive of the actual pathology