Fig. 2

Chest CT findings. A Four months before admission, her chest CT showed a subpleural and basal predominant reticular pattern with peripheral traction bronchiectasis. B On admission, extensive GGOs with geographic distribution appeared bilaterally. C Immediately before WLL, GGOs worsened further in both lung fields four months after the diagnosis. D After WLL, GGOs improved significantly with no change in the underlying interstitial pneumonia.