A barium swallow is a type of X-ray test that helps your doctor see the back of your mouth and throat (pharynx), and the tube that extends from the back of the tongue down to the stomach (esophagus).
What Is an Upper GI Series? An upper GI series is a group of X-ray tests that look at your GI tract -- your food pipe (the esophagus), stomach, and the first part of your small intestine (the duodenum ...
A barium enema is a procedure that uses an X-ray to examine the lower gastrointestinal (GI) tract. It can help identify colorectal cancers and other conditions. Experts may also call barium enemas ...