Changes

===Plain radiography===

===Plain radiography===

[[Image:Gastric ulceration.png|thumb|right|250px|Gastric Ulceration - Copyright David Walker RVC]]

[[Image:Gastric ulceration.png|thumb|right|250px|Gastric Ulceration - Copyright David Walker RVC]]

Not usually diagnostic but can rule out differentials such as foreign bodies and peritonitis.

Not usually diagnostic but can rule out differentials such as foreign bodies and [[Peritonitis|peritonitis]].

===Positive contrast radiography===

===Positive contrast radiography===