Glossary Term:

Title

sigmoidoscope

Phonetic

sig-<b>MOYD</b>-uh-<b>scope</b>

Description

a thin, flexible, hollow, lighted tube about the thickness of a finger. It is inserted through the rectum up into the lower part of the colon. This allows the doctor to look at the inside of the rectum and the lower part of the colon for cancer or for polyps (small growths that can become cancer). The sigmoidoscope is connected to a camera and TV monitor so the doctor can look closely at the inside of the colon. See also colon, polyp, rectum, sigmoid colon, sigmoidoscopy.