Cricopharyngeal achalasia occurs in young dogs, causing both swallowing and
respiratory signs. It occurs when the upper esophageal sphincter fails to
open during swallowing, thereby preventing food from entering the proximal
esophagus. Careful evaluation of swallowing function and exclusion of other
causes of dysphagia are necessary for a diagnosis. Cricopharyngeal myotomy
is an effective treatment with few complications.