Feline esophagus

Discussion:

Barium swallow in a patient with symptoms of gastro-esophageal reflux demonstrates transient horizontal ridges throughout the esophagus (they disappear with a subsequent swallow).

These features are typical of the so-called feline esophagus.

These represent contraction of the muscularis mucosa. It is most commonly seen in patients with gastroesophageal reflux. This patient has a large hiatus hernia and reflux on subsequent imaging.

Image credit Dr Evan Stein 

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