Esophageal rings and webs

Esophageal webs are the most common structural abnormalities of the

esophagus

. They are an atypical tissue inside your esophagus when an indentations of the esophageal wall forms and may partially occlude the esophageal lumen. Rings differ from webs primarily by being thicker and involving more of the wall of the esophagus. Both webs and rings can happen anywhere in the esophagus, however, webs are usually found in the upper part while rings tend to occur more in the lower part of the esophagus. Esophageal webs and rings are usually asymptomatic but can occasionally present with intermittent

dysphagia

to solids. Dysphagia becomes symptomatic only when the luminal diameter in the region of the esophageal web or ring becomes less than 12 mm. Esophageal rings and webs are best detected by

barium swallow

or

upper endoscopy

.