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. 2021 Feb 25;3(1):e200279. doi: 10.1148/ryct.2021200279

Figure 13b:

Nonspecific interstitial pneumonia. (a) Axial CT scan demonstrates fibrotic nonspecific interstitial pneumonia early in the disease course with lower lung fibrosis and ground-glass opacity with some subpleural sparing. (b) Axial CT scan 10 years later demonstrates substantial progression of the pulmonary fibrosis, which now demonstrates increased reticular abnormality, less ground-glass abnormality, and more traction bronchiectasis. Understanding the evolution of the disease by reviewing the prior imaging is critical in these cases.

Nonspecific interstitial pneumonia. (a) Axial CT scan demonstrates fibrotic nonspecific interstitial pneumonia early in the disease course with lower lung fibrosis and ground-glass opacity with some subpleural sparing. (b) Axial CT scan 10 years later demonstrates substantial progression of the pulmonary fibrosis, which now demonstrates increased reticular abnormality, less ground-glass abnormality, and more traction bronchiectasis. Understanding the evolution of the disease by reviewing the prior imaging is critical in these cases.