1. a-d) Typical changes over time in different diffuse lung diseases
a-d) Typical changes over time in different diffuse lung diseases. a) Subacute hypersensitivity pneumonitis: baseline (left) and 6-month follow-up (right) high-resolution computed tomography (HRCT).
a-d) Typical changes over time in different diffuse lung diseases. a) Subacute hypersensitivity pneumonitis: baseline (left) and 6-month follow-up (right) high-resolution computed tomography (HRCT). Ground glass opacity and centrilobular nodules demonstrate significant interval decrease after antigen removal with mild persistent abnormality remaining including reticulation. b) Desquamative interstitial pneumonia: baseline (left) and 3-year follow-up (right) HRCT. Subpleural ground glass opacity seen on the baseline HRCT has evolved into cystic lucencies in a patient who continued to smoke. The cystic lucencies may represent emphysema surrounded by fibrosis. c) Sarcoidosis: baseline (left) and 4-year follow-up (right) HRCT. Perilymphatic nodules on the initial HRCT evolve into fibrosis as evidenced by reticulation, architectural distortion, and mild bronchiectasis. d) Organising pneumonia: baseline (left) and 2-year follow-up (right) HRCT. Ground glass opacity, consolidation, and the reversed halo sign on the initial HRCT evolves to fibrosis after treatment with corticosteroids.
Brett M. Elicker et al. Eur Respir Rev 2017;26:170008
©2017 by European Respiratory Society