In external beam radiation therapy, radiation is produced by a machine called a linear accelerator. Short bursts of x-rays are fired from the machine at your cancer. The x-rays come out in a square-shaped manner, and the radiation oncologist designs special blocks or uses special columnators within the machine itself to shape the radiation beam so that it treats the cancer and as little normal tissue as possible.
In general, radiation is not used in the treatment of leukemia, except when a patient is being prepared for bone marrow transplant or in come cases of chronic leukemia. Sometimes local irradiation to the spleen may be needed if large numbers of leukemia cells are clogging that organ; in such a situation, irradiation may be an alternative to surgical removal of the spleen.
Please be aware that this information is provided to supplement the care
provided by your physician. It is neither intended nor implied to be a
substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER
IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the
advice of your physician or other qualified health provider prior to
starting any new treatment or with any questions you may have regarding a