Definition of Proctosigmoidoscopy
Proctosigmoidoscopy: An examination of the rectum and the lower part of the colon, using a thin, lighted instrument called a sigmoidoscope.
Source: MedTerms™ Medical Dictionaryhttp://www.medterms.com/script/main/art.asp?articlekey=5056
Last Editorial Review: 3/19/2012
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