NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,938 terms related to cancer and medicine.

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endoscopy
(en-DOS-koh-pee)
A procedure that uses an endoscope to examine the inside of the body. An endoscope is a thin, tube-like instrument with a light and a lens for viewing. It may also have a tool to remove tissue to be checked under a microscope for signs of disease.