Ann Contreras has consulted a noted colorectal surgeon after experiencing episodes of rectal bleeding over the last 2 weeks.She had a screening colonoscopy 5 years ago with several adenomatous polyps and mild diverticular disease.She presents to the endoscopy suite after a successful bowel prep and NPO since midnight.The GI endoscopist is confident that she will find tumor growth in the rectum and decides to employ further diagnostic applications to determine potential for metastasis.Which of the following endoscopic procedures best describes Ann's procedure?

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Quizplus · Accepted Answer

Colonoscopy is endoscopic examination of the colon from the rectum to the ileocecal valve.The bowel wall is inspected for abnormalities such as bleeding,polyps,inflammation,ulceration,or tumors during both insertion and withdrawal of the colonoscope.EUS combines endoscopy and ultrasound,using sound waves to generate an image of the histologic layers of the esophageal,gastric,and intestinal walls.The frequencies used,higher than those used in traditional ultrasound,provide high-level accuracy of depth of mucosal invasion.EUS is of critical importance in staging GI malignancies and determining surgical options and potential for therapeutic resection.

Ann Contreras Has Consulted a Noted Colorectal Surgeon After Experiencing