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NIH/National Cancer Institute

Sigmoidoscopy

Caption: A thin, lighted tube is inserted through the anus and rectum and into the lower part of the colon to look for abnormal areas.

Credit: Terese Winslow for NCI

Usage Restrictions: This image is copyright protected. Any use of this image is subject to prevailing copyright laws. U.S. Government has reuse rights. Please contact the rights holder of this image, Terese Winslow (terese.winslow@mindspring.com) for permission requests.

Related news release: NIH study finds sigmoidoscopy reduces colorectal cancer rates


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