Figure 5 . Lung microscopy showing the early phase of ARDSA. Hyaline membrane (green asterisk, x400). B. Type II
pneumocyte proliferation and alveolar desquamation (x400). C.Microthrombi (blue arrows, x200). D. Microthrombi (blue
arrows), Type II pneumocyte proliferation, atypical Type II pneumocyte
(orange arrow), alveolar desquamation (x400).