Changes

*'''Para-oesophageal hiatal hernia''' - Cranial displacement of part of the stomach into mediastinum through a defect ''adjacent'' to the oesophageal hiatus.

*'''Para-oesophageal hiatal hernia''' - Cranial displacement of part of the stomach into mediastinum through a defect ''adjacent'' to the oesophageal hiatus.

Acquired hernias can occur in any breed of dog or cat. The cause is unknown but it is suspected to result from disorders that cause increases in intra-abdominal pressure (ie chronic vomiting) or increases in negative intrathoracic pressure (ie intermittent airway obstruction seen with laryngeal paralysis).  

Acquired hernias can occur in any breed of dog or cat. The cause is unknown but it is suspected to result from disorders that cause increases in intra-abdominal pressure (ie chronic vomiting) or increases in negative intrathoracic pressure (ie intermittent airway obstruction seen with [[Laryngeal paralysis - WikiClinical|Laryngeal Paralysis]]

).  

==Diagnosis==

==Diagnosis==