Endoscopic ultrasound (EUS) is a type of ultrasound used to examine the layers of the esophagus, stomach, duodenum, bile duct, pancreas and gallbladder. An ultrasound uses sound waves to make images of the inside of the body. In an EUS, the ultrasound probe is passed down the throat or up the rectum and into the digestive tract.

How You Benefit

EUS provides your doctor with crucial information to accurately diagnose digestive tract disorders and determine the most effective treatment options. The ultrasound probe used for the test can also be used to take tissue samples and remove polyps, often avoiding the need for surgery.

What to Expect

Learn more about endoscopic ultrasound, including what to expect and how to prepare for the procedure, in our online Health Library.