NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 8,390 terms related to cancer and medicine.
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- contrast material
- listen (KON-trast muh-TEER-ee-ul)
- A dye or other substance that helps show abnormal areas inside the body. It is given by injection into a vein, by enema, or by mouth. Contrast material may be used with x-rays, CT scans, MRI, or other imaging tests.