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 · Colonoscopy is one of the most sensitive tests currently available for colon cancer screening. The doctor can view your entire colon and rectum. Abnormal tissue, such as polyps, and tissue samples (biopsies) can be removed through the scope during the exam.
Colon polyps - Diagnosis and treatment - Mayo Clinic
Colonoscopy, in which a small tube with a light and camera is inserted into your rectum to look at your colon. If polyps are found, your health care provider may remove them immediately or take tissue samples to send to the lab for analysis.
Virtual colonoscopy - Mayo Clinic
2023年7月6日 · Virtual colonoscopy is also known as screening CT colonography. 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.
Colon polyps - Symptoms and causes - Mayo Clinic
Overview. A colon polyp is a small clump of cells that forms on the lining of the colon. Most colon polyps are harmless. But over time, some colon polyps can develop into colon cancer. Colon cancer can be fatal when found in its later stages. Anyone can develop colon polyps.
Colposcopy - Mayo Clinic
2024年5月11日 · Find out why colposcopy is done and what to expect during an exam to diagnose cancer and other problems affecting the cervix, vagina and vulva.
Colon cancer - Symptoms and causes - Mayo Clinic
2023年7月27日 · Colon cancer can happen in any part of the colon. 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.
Endoscopic mucosal resection - Mayo Clinic
2024年10月29日 · Endoscopic mucosal resection, or EMR, uses a specially designed endoscope or colonoscope to remove suspect tissue or polyps from your esophagus or colon. The tissue or polyp is first injected with a solution that raises a blister, allowing your doctor to remove the tissue without damaging the rest of the esophagus or colon.
Colon cancer - Diagnosis and treatment - Mayo Clinic
2023年7月27日 · Diagnosing colon cancer. Colonoscopy Enlarge image. During a colonoscopy, the healthcare professional puts a colonoscope into the rectum to check the entire colon. Tests and procedures used for colon cancer diagnosis include: Using …
Flexible sigmoidoscopy - Mayo Clinic
2024年7月9日 · A flexible sigmoidoscopy is an exam to see inside the rectum and part of the large intestine. A flexible sigmoidoscopy (sig-moi-DOS-kuh-pee) exam is performed using a thin, flexible tube with a light, camera and other tools, called a sigmoidoscope. The large intestine is called the colon. The last section of the colon that connects to the ...