Colonoscopy - Mayo Clinic
2024年2月28日 · A colonoscopy (koe-lun-OS-kuh-pee) is an exam used to look for changes — such as swollen, irritated tissues, polyps or cancer — in the large intestine (colon) and rectum. During a colonoscopy, a long, flexible tube (colonoscope) is inserted into the rectum.
Colon cancer screening: Weighing the options - Mayo Clinic
2022年12月6日 · During a colonoscopy exam, a long, flexible tube (colonoscope) is inserted into the rectum. A tiny video camera at the tip of the tube allows the doctor to detect changes or abnormalities inside the entire colon.
Colon cancer - Diagnosis and treatment - Mayo Clinic
2023年7月27日 · Tests and procedures used for colon cancer diagnosis include: Using a scope to examine the inside of the colon. Colonoscopy uses a long, flexible and slender tube attached to a video camera and monitor to view the whole colon and rectum.
Virtual colonoscopy - Mayo Clinic
2023年7月6日 · Unlike the usual or traditional colonoscopy, which needs a scope to be put into your rectum and advanced through your colon, virtual colonoscopy uses a CT scan to take hundreds of cross-sectional pictures of your belly organs.
Video: Colonoscopy - Mayo Clinic
2022年5月28日 · A colonoscopic examination involves gently inserting a fiber-optic colonoscope into your rectum and large intestine to view your lower gastrointestinal tract.
Flexible sigmoidoscopy - Mayo Clinic
2024年7月9日 · Sigmoidoscopy is used to screen for colon cancer or polyps that can lead to cancer. The U.S. Preventive Services Task Force recommends a first screening at age 45. People with a higher risk of colon cancer may have a first test at age 40.
Colon cancer - Symptoms and causes - Mayo Clinic
2023年7月27日 · An exam of the whole colon using a long, flexible tube with a camera is one way to detect colon cancer and polyps. This exam is called a colonoscopy. Colon cancer is a growth of cells that begins in a part of the large intestine called the colon.
Colon polyps - Diagnosis and treatment - Mayo Clinic
These tests also can help find colorectal cancer in its early stages, when you have a good chance of recovery. Screening methods include: Colonoscopy, in which a small tube with a light and camera is inserted into your rectum to look at your colon.
Fecal occult blood test - Mayo Clinic
2024年7月12日 · If your fecal occult blood test result is positive, your healthcare professional may recommend a test to examine the inside of your colon. The test is called a colonoscopy. How you prepare. To prepare for a fecal occult blood test, you may need to change what you eat and what medicines you take.
Mayo Clinic Minute: Tips to make colonoscopy bowel prep ...
2024年3月28日 · The purpose of a colonoscopy is to examine the colon and rectum for abnormalities such as polyps, tumors or inflammation, aiding in the detection and prevention of colorectal cancer. And to do that, it's important your medical team has a clear view.