From the case: Achalasia

Left oblique
Section: Signs
Tag: refs
Modality: Barium (Left oblique)

- “ The appearances of achalasia are almost pathognomonic on barium swallow.  These include: 1.  A gas filled dilated esophagus on control film 2.  ...”

Used in the following article:

  • Bird beak sign (esophagus) - “ The bird's beak sign of the esophagus is used to refer to the tapering of the inferior esophagus in achalasia. The same appearance (although it is...”

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