Staging is performing exams and tests to learn the extent of the cancer within the body, especially whether the disease has spread from the original site to other parts of the body. It is important to know the stage of the disease in order to plan the best treatment.
Staging systems for cancer have evolved over time. They continue to change as scientists learn more about cancer. Some staging systems cover many types of cancer; others focus on a particular type.
The TNM system is one of the most commonly used staging systems.
The doctor most familiar with your situation is in the best position to provide staging information and to answer staging questions.