Gastric bubble

The gastric bubble is a radiolucent rounded area generally nestled under the left hemidiaphragm representing gas in the fundus of the stomach.

On a lateral radiograph, the gastric bubble is usually located between the abdominal wall and spine. It can be seen on chest or abdominal plain films. It is seen on approximately 70% of normal chest radiographs.

An important differential is pneumoperitoneum, which is usually easily distinguishable as a thin radiolucent crescent under the hemidiaphragm. 

Related pathology

Chest x-ray
Share article

Article information

rID: 59275
Section: Anatomy
Synonyms or Alternate Spellings:

Support Radiopaedia and see fewer ads

Updating… Please wait.
Loadinganimation

Alert accept

Error Unable to process the form. Check for errors and try again.

Alert accept Thank you for updating your details.