Figure 6 . Lung microscopy showing the late organizing phase of
ARDS A. Septal thickening with interstitial cellular increase
(x100). B. Septal thickening with interstitial cellular and
collagenous increase (x200). C. Interstitial inflammatory
cellular infiltration (x400). D. Interstitial thickening with
cellular and collagenous increase, atypical type II pneumocyte (orange
arrow).