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  2. Sigmoidoscopy - Wikipedia

    en.wikipedia.org/wiki/Sigmoidoscopy

    Flexible sigmoidoscopy is not sufficient to detect polyps or cancer in the ascending or transverse colon (two-thirds of the colon). However, although in absolute terms only a relatively small section of the large intestine can be examined using sigmoidoscopy, the sites which can be observed represent areas which are most frequently affected by ...

  3. Colonoscopy - Wikipedia

    en.wikipedia.org/wiki/Colonoscopy

    The purpose of a colonoscopy is to provide a visual diagnosis via inspection of the internal lining of the colon wall, which may include identifying issues such as ulceration or precancerous polyps, and to enable the opportunity for biopsy or the removal of suspected colorectal cancer lesions.

  4. Colorectal cancer - Wikipedia

    en.wikipedia.org/wiki/Colorectal_cancer

    Colorectal cancer (CRC), also known as bowel cancer, colon cancer, or rectal cancer, is the development of cancer from the colon or rectum (parts of the large intestine). [5] Signs and symptoms may include blood in the stool , a change in bowel movements , weight loss, abdominal pain and fatigue. [ 9 ]

  5. Casandra Costley thought rectal bleeding, pain was because of a hemorrhoid. She was diagnosed with Stage 4 colon cancer. Trying to educate others on social media.

  6. Megacolon - Wikipedia

    en.wikipedia.org/wiki/Megacolon

    A human colon is considered abnormally enlarged if it has a diameter greater than 12 cm [3] in the cecum (it is usually less than 9 cm [4]), greater than 6.5 cm [3] in the rectosigmoid region and greater than 8 cm [3] for the ascending colon. The transverse colon is usually less than 6 cm in diameter. [4] A megacolon can be either acute or ...

  7. Lower gastrointestinal series - Wikipedia

    en.wikipedia.org/wiki/Lower_gastrointestinal_series

    A lower gastrointestinal series is a medical procedure used to examine and diagnose problems with the human colon of the large intestine. Radiographs (X-ray pictures) are taken while barium sulfate, a radiocontrast agent, fills the colon via an enema through the rectum.

  8. Colon cut-off sign - Wikipedia

    en.wikipedia.org/wiki/Colon_cut-off_sign

    The colon cut-off sign is a radiographic finding seen on abdominal radiographs and computed tomography scans. It is characterized by a marked dilatation of the transverse colon, with an abrupt transition to collapsed distal colon, particularly the splenic flexure. [1] This sign is indicative of underlying pathology, most commonly acute ...

  9. Intussusception (medical disorder) - Wikipedia

    en.wikipedia.org/wiki/Intussusception_(medical...

    The appearance of target sign (also called "doughnut sign" on a sonograph, usually around 3 cm in diameter, confirms the diagnosis. The image seen on transverse sonography or computed tomography is that of a doughnut shape, created by the hyperechoic central core of bowel and mesentery surrounded by the hypoechoic outer edematous bowel. [10]

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