Changes

==Description==  

==Description==  

Chronic gastritis is often characterised by persistent [[vomiting|vomiting]] of variable frequency and appearance. The underlying cause is unknown but chronic gastritis can be classified into one of four types according to its histological appearance.

Chronic gastritis is often characterised by persistent [[vomiting|vomiting]] of variable frequency and appearance. The underlying cause is unknown but chronic gastritis can be classified into one of four types according to its histological appearance.

1)'''Lymphocytic-plasmacytic gastritis''' which may be an immune response to numerous antigens. [[Helicobacter|''Helicobacter felis'']] has been suggested as a cause for such a reaction in dogs and cats.

1)'''Lymphocytic-plasmacytic gastritis''' which may be an immune response to numerous antigens. [[Helicobacter|''Helicobacter felis'']] has been suggested as a cause for such a reaction in dogs and cats.