We all know about our intestine... It helps us to digest and absorb food.. but it may be perforated by several cause inside the body... When it is perforated, gas inside the intestine come out into the abdominal cavity and is becomes visiable in plain xray of abdomen... Gas accumulated under the diaphragm (see above xray) ..
Gut perforation is a life threatening condition.... Plz be aware of it....
Stay safe..