Oncologist-approved cancer information from the American Society of Clinical Oncology

Diagnosing Cancer

This section provides information on the following topics:

When the Doctor Says Cancer

For people newly diagnosed with cancer, learn more about finding support, seeking a second opinion, and organizing your cancer care.

Questions to Ask the Doctor

An important part of managing your care is knowing what questions to ask of your doctor. Learn more helpful communication tips in this section.

Tests and Procedures

This section describes the many different types of tests and procedures used to diagnose cancer and to find out how far the disease has spread.

Stages of Cancer

Staging is the process of describing the size and location of the tumor(s) and whether the cancer has spread to other parts of the body. This section provides an overview of staging.

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