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At the time the article was created Matt A. Morgan had no recorded disclosures.View Matt A. Morgan's current disclosures
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If the ring becomes symptomatic, then it is usually termed a Schatzki ring, although some use the terms synonymously.
Its development is thought to be a reaction to chronic irritation of the esophageal mucosa from gastro-esophageal reflux and it has squamous epithelium on its upper surface and columnar epithelium on its lower surface.
They are often associated with a hiatal hernia.
- short annular ("ringlike") peptic stricture: these tend to make a broader impression on the distal esophagus than a B ring, which is usually <3 mm in thickness