Effect of Cigarette Smoke on Wound Healing of the Septal Mucosa of the Rat

Figure 4

Photomicrographs of the rat septal mucosa after 14 days of injury, with or without cigarette smoke exposure. (a) Epithelial thickness and micropapillary structures after 14 days of cigarette smoke exposure. (b) Control group displays squamous metaplasia (hematoxylin and eosin stain; original magnification ×100, ×200).

(a)

(b)