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Radiation Therapy
Radiation is a type of x-ray therapy that damages or
kills cancer cells. It is administered to about half
of all children with cancer. It is often used in the
early stages of the disease, when the cancer is
still localized but too advanced for surgery. After
the primary tumour has been removed, doctors use
radiation to clean up any remaining tumour cells.
Radiation works well with surgery for it "gets" the
residual local cells that the operation misses,
while surgery can handle a large tumour that
radiation alone could not cure. Some tumours that do
not require surgery may be cured by radiation alone.
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