Conclusion An animal model of benign esophageal stenosis as a result of cauterization is reliable, and it is characterized by inflammatory response, which is replaced gradually by granulation tissue and fibrosis. Refractory Benign Esophageal Stenosis: Treatment with Covered Retrievable Self-Expandable Stents 结论通过局部烧灼的方法可以建立稳定的犬食管良性狭窄模型,其病理表现主要为肉芽组织形成及纤维化。可回收覆膜支架治疗难治性食管良性狭窄
In the later period, the incidence of pulmonary infection and granulation tissue formation of patients with malignant tracheobronchial stenosis were higher than those of benign ones. 在远期,恶性气道狭窄患者的肺部感染率和肉芽组织的形成率都高于良性患者。