A ring (oesophagus)
Citation, DOI, disclosures and article data
Citation:
Knipe H, Shah V, Morgan M, et al. A ring (oesophagus). Reference article, Radiopaedia.org (Accessed on 24 Mar 2025) https://doi.org/10.53347/rID-31336
rID:
31336
Article created:
Disclosures:
At the time the article was created Henry Knipe had no recorded disclosures.
View Henry Knipe's current disclosures
Last revised:
Disclosures:
At the time the article was last revised Vikas Shah had no recorded disclosures.
View Vikas Shah's current disclosures
Revisions:
11 times, by
8 contributors -
see full revision history and disclosures
Systems:
Tags:
Synonyms:
- A ring
- Oesophageal A-rings
- Esophageal A-rings
- A-rings
- A rings
A rings are a type of distal oesophageal ring. They are above the B ring and occur a few centimetres proximal to the gastro-oesophageal junction. They represent a physiological contraction of oesophageal smooth muscle covered by mucosa. A rings are uncommonly symptomatic.
References
- 1. Smith MS. Diagnosis and management of esophageal rings and webs. Gastroenterol Hepatol (N Y). 2011;6 (11): 701-4. Free text at pubmed - Pubmed citation
- 2. Liu JJ and Kahrilas PJ. Pharyngeal and esophageal diverticula, rings, and webs. GI Motility online (2006). Full text: Nature.com
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