NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 7,926 terms related to cancer and medicine.
Browse the dictionary by selecting a letter of the alphabet or by entering a cancer-related word or phrase in the search box.
- childhood acute lymphoblastic leukemia risk group system
- listen (... uh-KYOOT LIM-foh-BLAS-tik loo-KEE-mee-uh risk groop SIS-tem)
- A way of grouping patients that is used to plan treatment for children with acute lymphoblastic leukemia. A risk group is based on the patient’s age and white blood cell count at diagnosis. Risk groups are described as either standard (low) risk or high risk. Other factors that affect the risk group include the type of leukemia cells, whether there are certain chromosome changes, and how quickly the leukemia responds to treatment.