Rat-tail sign (esophagus)

Last revised by Dr Mohamed Saber on 27 Oct 2020

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

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Cases and figures

  • Photograph - rat's tail :)
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  •  Case 1
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  • Case 2
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  • Case 3
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  • Case 4
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