Types of Colorectal cancer


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Types list: The list of types of Colorectal cancer mentioned in various sources includes:

  • Stages of colorectal cancer:
    • Stage 0 colorectal cancer - very early cancer of the lining.
    • Stage I colorectal cancer - involving the inner wall of colon or rectum.
    • Stage II colorectal cancer - cancer has spread locally beyond colon/rectum but not to lymph nodes.
    • Stage III colorectal cancer - spread to lymph nodes but not further.
    • Stage IV colorectal cancer - metastatic cancer; usually to liver or lungs.
  • Recurrent colorectal cancer - occurring again after previous treatment.

Types discussion: If the diagnosis is cancer, the doctor needs to learn the stage (or extent) of disease. Staging is a careful attempt to find out whether the cancer has spread and, if so, to what parts of the body. More tests may be performed to help determine the stage. Knowing the stage of the disease helps the doctor plan treatment. Listed below are descriptions of the various stages of colorectal cancer.

  • Stage 0. The cancer is very early. It is found only in the innermost lining of the colon or rectum.

  • Stage I. The cancer involves more of the inner wall of the colon or rectum.

  • Stage II. The cancer has spread outside the colon or rectum to nearby tissue, but not to the lymph nodes. (Lymph nodes are small, bean-shaped structures that are part of the body's immune system.)

  • Stage III. The cancer has spread to nearby lymph nodes, but not to other parts of the body.

  • Stage IV. The cancer has spread to other parts of the body. Colorectal cancer tends to spread to the liver and/or lungs.

  • Recurrent. Recurrent cancer means the cancer has come back after treatment. The disease may recur in the colon or rectum or in another part of the body.

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Footnotes:
1. excerpt from What You Need To Know About Cancer of the Colon and Rectum: NCI

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