proton therapy

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A type of radiotherapy that uses a beam of protons. These charged particles are produced by a cyclotron and penetrate only a predictable distance into the body depending on the energy. This is the radiotherapy treatment of choice for many childhood cancers, particularly brain and spinal tumours, as it can avoid more normal tissue and reduce the risk of long-term complications compared to photon (X-ray) beams.

Subjects: Medicine and Health.

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