Endoscopic Ultrasound (EUS)

Endoscopic ultrasound (EUS) allows your doctor to examine your esophageal and stomach linings, as well as the walls of your upper and lower gastrointestinal tract. The upper tract consists of the esophagus, stomach and duodenum; the lower tract includes your colon and rectum. EUS is also used to study other organs that are near the gastrointestinal tract, including the lungs, liver, gallbladder and pancreas.