Endoscopic Ultrasonography

Endoscopic ultrasonography (EUS) is used to view the walls of your digestive tract and other nearby organs. 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 digestive tract.

Complications are rare, but no test is completely free of risk. If you are planning to have EUS, your doctor will review a list of possible complications, which may include:

• Infection
• Bleeding
• Mild sore throat for 1-2 days
• Reaction to sedatives
• Regurgitation of stomach contents into the lungs
• Damage to digestive tract

Factors that may increase the risk of complications include:

• Advanced age
• Having other medical conditions

Be sure to discuss these risks with your doctor before the test.

Your doctor may talk to you about the results right away. If you had a biopsy, it may take longer to receive results.

After the test, call your doctor if any of the following occurs:

• Pain or discomfort that does not go away or worsens
• Vomiting blood, blood in stool, or dark black stool
• Indigestion
• New or unusual symptoms