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An endoscope is a device with a light attached that is used to look inside a body cavity or organ. The scope is inserted through a natural opening, such as the mouth during a bronchoscopy or the rectum for a sigmoidoscopy.
A medical procedure using any type of endoscope is called endoscopy.
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Reviewed By: Linda J. Vorvick, MD, Medical Director, MEDEX Northwest Division of Physician Assistant Studies, University of Washington, School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.