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Rhabdomyosarcoma occurs in every part of the body. Proton
beam therapy can be used to minimize the radiation dose to
bones and other critical structures surrounding the particular
disease area. The case depicted in these figures shows a proton
radiation plan that treats obvious disease and surrounding
areas at risk of disease. Avoiding the cochlea with the proton
beam ensures that hearing will be preserved. The chance of
maintaining vision in the nearby eye can be increased by minimizing
the dose to the eye and optic structures. Avoiding nearby
brain also reduces the potential damage caused by high doses
of radiation. The red color-wash overlaid on the CT images
represents regions receiving high doses of proton radiation
whereas the blue represents regions receiving low doses of
proton radiation.
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