Esophageal webs are thin membranes, 1 to 2mm in diameter, extending completely or partially around the esophageal lumen.Most webs occur singly and are located in the proximal esophagus along the anterior border. Some are part of a benign appearing stricture. Most smaller webs are incidental findings; more prominent ones are symptomatic. No definite association exists between the remaining esophageal lumen caliber and degree of dysphagia. Esophageal webs are amenable to balloon dilation; they are readily dilated with 20-mm diameter balloon catheters, a simple and effective therapy.
Upper esophageal webs. No underlying disease was found.