NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 8,122 terms related to cancer and medicine.

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IMRT
A type of 3-dimensional radiation therapy that uses computer-generated images to show the size and shape of the tumor. Thin beams of radiation of different intensities are aimed at the tumor from many angles. This type of radiation therapy reduces the damage to healthy tissue near the tumor. Also called intensity-modulated radiation therapy.