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Questions About Cancer? 1-800-4-CANCER

NCI Dictionary of Cancer Terms

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stage 0 Merkel cell carcinoma in situ  listen  (stayj … MER-kul sel KAR-sih-NOH-muh in SY-too)

  Abnormal cells are found in the place where they first formed and have not spread. These abnormal cells may become cancer and spread to lymph nodes or distant parts of the body.