Safe Way to Screen High-Risk Patients

Colonoscopy is a diagnostic procedure of choice used to exclude either the presence of potentially malignant polyps or of actual cancers of the colon or rectum. Colonoscopies may be carried out either for diagnostic or screening purposes. The instrument gives the surgeon, and the patient, who usually watches the scope by looking at an image of it on a screen, an excellent view. The surgeon gives a running commentary to the patient.

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