A ring (esophagus)
Citation, DOI & article data
Knipe, H., Shah, V. A ring (esophagus). Reference article, Radiopaedia.org. (accessed on 04 Oct 2022) https://doi.org/10.53347/rID-31336
A rings are a type of distal esophageal ring. They are above the B ring and occur a few centimeters proximal to the gastro-esophageal junction. They represent a physiological contraction of esophageal smooth muscle covered by mucosa. A rings are uncommonly symptomatic.
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