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Sigmoidoscopy
Pronunciation
Definition 1
Examination of the lower colon using a sigmoidoscope, inserted into the rectum. A sigmoidoscope 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. Also called proctosigmoidoscopy. (NCI Dictionary)
Definition 2
Endoscopic examination of the luminal surface of the sigmoid colon. (NCI Thesaurus)
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