Figure 2.

Venn diagrams of overlapping histological findings (a) based on 16 patients without pre‐biopsy corticosteroid therapy, (b) including all 19 patients despite previous corticosteroid therapy in three. The numbers in green represent patients who are alive and those in red are deceased. The red arrow shows the possible progressive changes over time. Note that there is no overlap between organizing pneumonia (OP) and interstitial fibrosis (IF), suggesting possible different pathological processes.