Changes

*chemicals

*chemicals

*drugs (especially non-steroidal anti-inflammatory drugs)

*drugs (especially non-steroidal anti-inflammatory drugs)

Infectious, viral and bacterial causes are thought to exist in cats and dogs but have not been identified at this point.

Infectious, viral and bacterial causes are thought to exist in cats and dogs but have not been identified as of yet.

Ingestion of these substances causes the disruption of the gastric mucosal barrier. This results in increased permeability, with hydrogen ions and pepsin penetrating the mucosa. An inflammatory response subsequently occurs that may damage blood vessels, resulting in the extravasation of blood and plasma into the gastric lumen. Mucosal erosions can develop due to necrosis of the mucosal epithelial cells.  

Ingestion of these substances causes the disruption of the gastric mucosal barrier. This results in increased permeability, with hydrogen ions and pepsin penetrating the mucosa. An inflammatory response subsequently occurs that may damage blood vessels, resulting in the extravasation of blood and plasma into the gastric lumen. Mucosal erosions can develop due to necrosis of the mucosal epithelial cells.  

===Radiography===

===Radiography===

Abdominal radiographs may be taken if the animal is severely ill and to rule out other causes such as an alimentary foreign body or obstruction.

Abdominal radiographs may be taken if the animal is severely ill and to rule out other causes such as an alimentary foreign body or obstruction.

===Endoscopy===

===Endoscopy===

Gastroscopy may be used to visualise gastric erosions/ulcers and hyperaemia.

Gastroscopy may be used to visualise gastric erosions/ulcers and hyperaemia.

==Treatment==

==Treatment==