Answer ( 1 )

  1. Doctors classify cancer by:

    its location in the body
    the tissues that it forms in
    For example, sarcomas develop in bones or soft tissues, while carcinomas form in cells that cover internal or external surfaces in the body. Basal cell carcinomas develop in the skin, while adenocarcinomas can form in the breast.

    When cancerous cells spread to other parts of the body, the medical term for this is metastasis.

    A person can also have more than one type of cancer at a time.

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