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Home >Information for Patients > Dictionary Index

Dictionary of Cancer Terms

View in Spanish: Ecografía endoscópica

Endoscopic ultrasound (en-doh-SKAH-pik)
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 endosonography and EUS.



 
 
Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.