NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 8,098 terms related to cancer and medicine.
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- listen (EN-doh-soh-NAH-gruh-fee)
- A procedure in which an endoscope is inserted into the body. An endoscope is a thin, tube-like instrument that has a light and a lens for viewing. A probe at the end of the endoscope is used to bounce high-energy sound waves (ultrasound) off internal organs to make a picture (sonogram). Also called endoscopic ultrasound and EUS.