Questions About Cancer? 1-800-4-CANCER


Different tests are used to diagnose and show the extent of the cancer within the body (stage). Tests can also show if the tumor is likely to grow and spread (grade). Doctors use the cancer stage and tumor grade information, together with other factors, to plan the best treatment, make a prognosis, and identify clinical trials. Learn about different tests, reports, and how to find a doctor or medical center.

In Their Own Words: After a Diagnosis, Adolescents and Young Adults with Cancer

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Experts in the field of adolescent and young adult (AYA) cancers and cancer survivors answer the question: What would you tell an adolescent or young adult with cancer?

On this page:
Diagnosing and Staging Cancer
Find a Doctor or Treatment Facility

Diagnosing and Staging Cancer

  • Cancer Staging

    A fact sheet that explains the process of grouping cancer cases in categories (stages) based on the size of the tumor and the extent of the cancer in the body.

  • Understanding Laboratory Tests

    A fact sheet that describes the role of screening and diagnostic laboratory tests. Includes a list of the common tests used in cancer medicine and a brief discussion of how to interpret test results.

  • Pathology Reports

    A fact sheet that describes the type of information that may be found in a pathology report, the document that contains results of the visual and microscopic examination of tissue removed during a biopsy or surgery.

  • Tumor Grade

    A fact sheet that discusses tumor grade and its role in prognosis. Explains concepts like normal cell biology and cell differentiation.

  • Tumor Markers

    A fact sheet that defines tumor markers and describes how they can be used to aid diagnosis and treatment.

  • Understanding Cancer Prognosis

    Prognosis describes how serious your cancer is and your chances of survival. Learn about survival statistics and how they are used to estimate prognosis.

Find a Doctor or Treatment Facility

  • How To Find a Doctor or Treatment Facility If You Have Cancer

    A fact sheet that offers suggestions for choosing a physician and facility for cancer treatment.

  • NCI-Designated Cancer Centers

    NCI-Designated Cancer Centers develop and translate scientific knowledge from promising laboratory discoveries into new treatments for cancer patients. They are at the forefront of NCI-supported efforts at universities and cancer research centers across the United States. Find a center near you and learn about their research capabilities and patient services.