Colonoscopy. Definition

Medical Definition: Colonoscopy

5. colonoscopy. Test that allows direct visualization of the entire large intestine and, if necessary, the final part of the small intestine (ileum), using a flexible tube inserted through the anus. A colonoscope has a light and a lens for viewing and may have a tool to remove tissue and studied under a microscope to check for signs of disease. Unlike sigmoidoscopy, which examines only the lower third of the colon, colonoscopy examines the colon in its entirety.

* Automatic translation