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The underlying principle of radiotherapy is using shaped beams of high energy light or particles to induce cell death in tumour cells, whilst sparing healthy cells.

Image courtesy of Shutterstock

Radiotherapy can be incredibly effective, and is increasingly used in both a curative and palliative capacity to kill or control tumour growth, either alone or in conjunction with chemotherapy. It's a growing method, with up to 60% of cancer patients receiving radiotherapy in the course of treatment.

Read more (Oxford Science blog)