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When Cancer Comes Back

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发表于 2017-5-13 09:24:38 | 显示全部楼层 |阅读模式




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WhenCancer Comes Back
    When cancer returns after a period of remission it’s considered a recurrence. Acancer recurrence happens because, in spite of the best efforts to rid you ofyour cancer, some cells from your cancer remained. These cells could be in thesame place where your cancer first originated, or they could be in another partof your body. These cancer cells may have been dormant for a period of time,but eventually they continued to multiply, resulting in the reappearance of thecancer.
    Cancerrecurrence can be organized into three categories: local, regional and distant.Local recurrence refers to cancer being found at the original cancer site.Regional recurrence means that the cancer has spread to the lymph nodes and thegeneral area of the original cancer site. Distant recurrence refers to cancerthat has spread to another area of the body.
    Treating arecurrence isn’t quite as simple because, in some cases, you may not be able touse the same treatment methods you became familiar with the first time around.In some instances, using the same chemotherapy medications will not be anoption because the cancer cells may have developed a resistance to them.
    According to the American Cancer Society,if your cancer returns within two years after ending chemotherapy, "it ispossible that the disease has grown despite the chemotherapy." Your doctorwill likely suggest a different medication that may be more effective.
    Another reason to try different medicinesis that certain medicines have toxicity that is only apparent after a certainthreshold of drug exposure is reached. For example, anthracyclines used for thetreatment of breast cancer can rarely be given twice because of cardiactoxicity when too much drug is used.

Questions:
1. Why doescancer recurrence happen?
2. How manycategories is cancer recurrence organized into?
3. What doesdistant recurrence refer to?
4. Under whatcircumstances will your doctor suggest a different medication according to theAmerican Cancer Society?
5. Which of the following statements about a cancerrecurrence is true?

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