Figure 4
Histopathology of the right upper and middle lobes (right arrow in
Figure 3a). (a) Emphysema and thrombosis were observed in the
upper lobe, while severe hemorrhage in the middle lobe. (b)High power view of thrombosis (red arrow in a). Organized thrombus is
pointed with the red arrow. (c) Hight power view of the middle
lobe (blue arrow in a). DAD with fibrin exudation was focally observed.
(a): Masson trichrome (MT) staining. (b)(c): Hematoxylin-eosin (HE)
staining.