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Treatment of Stage 0 Colon Cancer

Treatment of Stage 0 colon cancer (carcinoma in situ) may include the following types of surgery:

· Local excision, which is surgery to remove the colon cancer without cutting through the abdominal wall.

· A polypectomy, which is surgery to remove the colon cancer from the bulging piece of tissue.

· Resection/anastomosis, which is surgery that removes the colon cancer by taking out a section of the colon and rejoining the cut ends of the colon. This procedure is done when the cancerous tissue is too large to remove by local excision.

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The part of the large intestine that joins the small intestine is called the caecum. Directly above the anus is a short length of large intestine - 12-15cm long - called the rectum. The colon extends from caecum to the rectum and is divided into 4 parts: the ascending colon, which rises upwards from the caecum; the transverse colon, which runs across the body from right to left; the descending colon, which sweeps downwards; and a relatively short section called the sigmoid colon, which leads to the rectum.

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The treatment depends on the staging of the cancer. When colorectal cancer is
caught at early stages (with little spread) it can be curable. However when it is
detected at later stages (when distant [[metastasis|metastases]] are present) it is
less likely to be curable.

Surgery remains the primary treatment while chemotherapy and/or radiotherapy
may be recommended depending on the individual patient’s staging and other
medical factors.

Surgery

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