Answer: The clinical stage is an estimate of the extent of the cancer based on results of physical exams, imaging tests (x-rays, CT scans, and more, endoscopy exams, and any biopsies that are done before treatment starts. For some cancers, the results of other tests, such as blood tests, are also used in clinical staging.
Cancer staging provides helpful information for both patients and doctors: The stage suggests the most likely outcome. Knowing the stage gives an educated estimate of life expectancy and the chance of a cure. Treatment will be planned and recommended based on the stage of the cancer.
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