Bird-beak sign

The bird-beak sign is used to refer to the tapering of the inferior oesophagus in achalasia. The same appearance (although it is difficult to see the similarity) is also referred to as the rat-tail sign.

The appearances although classically occurring in primary achalasia, can also occur in pseudoachalasia due to a gastric tumour involving the gastro-oseophageal junction.


Inspired signs
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Article Information:

rID: 5996
Section: Signs
Tag: refs
Synonyms or Alternate Spellings:
  • Bird beak sign
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    Figure 1: photograph - bird beak
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    Achalasia
    Case 1: achalasia
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    Case 2: cardiac achalasia
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    Case 3
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     Case 4
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    Case 5
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