endoscopic ultrasound(EUS)

overview

An endoscopic ultrasound (EUS) involves passing a thin tube (endoscope) through the mouth, down the esophagus and into the stomach. The tube has an ultrasound device, a light and a tiny camera. Ultrasound uses soundwaves to create pictures of internal parts of the body. EUS allows your doctor to see the pancreas and other organs.

For parts of the body that are harder to see with an ultrasound from the outside, doctors use ultrasound devices that go inside the body.

Your doctor might recommend EUS if you have abdominal pain or other symptoms that can’t be explained. Your doctor can check for inflammation, scarring, cysts and noncancerous (benign) and cancerous (malignant) tumors. Your doctor may also take a sample of your cells (biopsy) or fluids during the EUS.

what to expect

Before your procedure, you may be asked not to eat or to drink only clear liquids. You also might need to avoid certain medications. EUS is an outpatient procedure. You’ll be sedated with medication given through a needle in your arm (intravenously, or IV). Any discomfort should be minor.
 
Your doctor will insert the tube into your mouth, or sometimes through the rectum. As the endoscope goes through your digestive system, your doctor will look at the images on different computer screens. The procedure usually takes 45 to 90 minutes. 

recovery

You’ll be monitored for an hour or two after the procedure, and you’ll need someone to drive you home. Usually, you can return to most normal activities. You might notice a sore throat or abdominal bloating for a day or two.

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