Presentation
Symptoms of gastro-oesophageal reflux.

Transient horizontal ridges throughout the oesophagus (they disappear with a subsequent swallow).
These features are typical of the so-called feline oesophagus.
Case Discussion
Barium swallow in a patient with symptoms of gastro-oesophageal reflux demonstrates transient horizontal ridges throughout the oesophagus (they disappear with a subsequent swallow).
These features are typical of the so-called feline oesophagus.
These represent contraction of the muscularis mucosa. It is most commonly seen in patients with gastrooesophageal reflux. This patient has a large hiatus hernia and reflux on subsequent imaging.
Image credit Dr Evan Stein