Establishing normal values for pediatric esophageal diameter on fluoroscopy.

Background: Standardized values for esophageal diameter on fluoroscopy have not been established. These values may help in the diagnosis of long-segment and diffuse esophageal narrowing, which can sometimes be subtle and difficult to diagnose.

Objective: Our objective was to establish normal values for esophageal diameter based on age for patients between 1 and 17 years old.