What Is Endoscopic Ultrasound (EUS)?
Endoscopic ultrasound combines endoscopy and ultrasound to evaluate the internal organs of the chest and abdomen. EUS is minimally invasive, similar to a standard upper endoscopy (EGD). The close proximity of the ultrasound to the internal organs provides very detailed ultrasound images. These images can be used to help diagnose and determine the extent of spread for certain types of cancer including lung, esophagus, stomach, pancreas, bile duct and rectal cancers. EUS has many other uses that include the management of pancreas cysts, intestinal nodules, gallstones, unexplained pancreatitis, chronic abdominal pain and bowel incontinence.