Esophageal stenosis

Generally refers to esophageal lumen stricture caused by benign esophageal disease (excluding tumors) or complications. Benign esophageal strictures have congenital and acquired causes. The former is extremely rare, mostly due to a limited thickening and narrowing of the esophagus, or a circular, valvular septum of the esophageal mucosa; the latter is most common in scar stenosis. Common causes of acquired stenosis: esophageal mucosal epithelium is damaged due to inflammation or chemical corrosion, and scarring stenosis is formed after repair; esophageal tumors, such as esophageal cancer, block the esophageal lumen to varying degrees; lesions around the esophagus are caused by external compression of the esophagus, such as the lungs and Mediastinal tumors, aneurysms, goiters, etc. Common causes of scar stenosis: ① traumatic esophageal stenosis; ② esophagitis (digestive reflux) caused stenosis; ③ esophageal stricture after expensive surgery