Esophageal stricture refers to the narrowing of the esophagus, often caused by acid flowing back from the stomach (reflux). The acid scars, then narrows the esophageal lining over time. This condition can lead to Barrett's esophagus.
Esophageal stricture can tested with endoscopy, a procedure in which a thin adjustable instrument with a camera attached at the end is inserted into the patient's mouth or rectum. Dilation (widening) of the esophagus may also be performed under anesthesia.