Type | Cause | Breeds Most Often Affected |
---|---|---|
Congenital megaesophagus | Abnormal nerve development in esophagus; sometimes part of more widespread nerve problems | Siamese |
Vascular ring entrapment | Physical constriction of the esophagus by blood vessels | No breed tendencies reported |
Cricopharyngeal achalasia | Failure of the cricopharyngeal muscle (in the throat) to relax during swallowing | Rare; no breed tendencies reported |