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Definition of Sigmoidoscopy

Sigmoidoscopy: A procedure in which a physician inserts a viewing tube (sigmoidoscope) into the rectum for the purpose of inspecting the lower colon and rectum. If an abnormal area is detected, a biopsy can be performed.

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=5492
Last Editorial Review: 3/19/2012

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