What are radiographic findings of interstitial pneumonia?

Updated: Sep 30, 2020
  • Author: Justina Gamache, MD; Chief Editor: Guy W Soo Hoo, MD, MPH  more...
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Interstitial pneumonia is classified as focal or diffuse. Pathologically, the radiographic pattern results from edema and inflammatory cellular infiltrate into the interstitial tissue of the lung. The pathologic development of interstitial pneumonia generally takes 1 of 2 forms: (1) an insidious infectious course that results in lymphatic infiltration of alveolar septa without parenchymal abnormality or (2) acute or rapidly progressive disease that results in diffuse alveolar damage affecting the interstitial and air spaces. Radiographically, the disease manifests with a reticular or reticulonodular pattern. [60, 61]

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