Staging is the process of finding out how far the cancer has spread. This is very important because your child's treatment and long-term outlook depend on the stage of the cancer.
The staging system used for Wilms tumor is called the NWTSG (National Wilms Tumor Study Group) system. It uses 5 stages of Wilms tumor. These stages are given Roman numerals I - V (1-5). The system takes into account findings from the physical exam, pictures from CT scans or other tests, and results of surgery (if surgery was done). In general, the lower the number, the less the cancer has spread. A higher number, such as stage IV (4), means a more advanced cancer.
After looking at the test results, the doctor will tell you the stage of your child's cancer. Be sure to ask your doctor to explain the stage in a way you understand. This will help you both decide on the best treatment.
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