Lower esophageal ring


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Definition

A lower esophageal ring is an abnormal ring of tissue that forms where the esophagus (the tube from the mouth to the stomach) and stomach meet.


Alternative Names

Esophagogastric ring; Schatzki's ring


Causes, incidence, and risk factors

A lower esophageal ring is a birth defect of the esophagus that occurs in 4% of people. It causes narrowing of the lower esophagus.

Narrowing of the esophagus may also be caused by:


References

Long JD, Orlando RC. Anatomy, histology, embryology, and developmental anomalies of the esophagus. In: Feldman M, Friedman LS, Brandt LJ, eds. Sleisenger and Fordtran's Gastrointestinal and Liver Disease. 9th ed. Philadelphia, Pa: Saunders Elsevier;2010: chap 41.


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Review Date: 11/11/2010
Reviewed By: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; and George F. Longstreth, MD, Department of Gastroenterology, Kaiser Permanente Medical Care Program, San Diego, California. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
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Last Updated 5/15/2011
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