Figure 5
From: The role of tracheal wall injury in the development of benign airway stenosis in rabbits
(A) EB-OCT images of rabbits without airway stenosis, (B) airway histological characteristics of rabbits without airway stenosis (HE; original magnification ×40). (C) EB-OCT images of rabbits with airway stenosis, (D,E) airway histologic characteristics of rabbits with airway stenosis. D (HE; original magnification ×100) and (E) (HE; original magnification ×200) airway stenosis showing ciliated columnar epithelial necrosis and shedding, a small amount of residual epithelial tissue, the submucosal fibrous tissue proliferating and protruding into the tracheal lumen, inflammatory cell infiltration in the interstitium (yellow circle), the smooth muscle of the tube wall is broken and atrophied, and the focal cartilage is damaged (red pentagram); (F) fibroblastic proliferation EB-OCT endobronchial optical coherence tomography, HE hematoxylin–eosin, EP epithelial, LP laminae propria, SM submucosa.
