A-rings (oesophagus)

A.Prof Frank Gaillard and Dr Henry Knipe et al.

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.

Oesophageal pathology
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Article information

rID: 31336
Synonyms or Alternate Spellings:
  • A ring
  • Oesophageal A-rings
  • Esophageal A-rings
  • A-rings
  • A rings

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Cases and figures

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    Case 1
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    Case 2: the A & B rings, single contrast
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    Case 2: the A & B rings, double contrast
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