NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 7,800 terms related to cancer and medicine.
Browse the dictionary by selecting a letter of the alphabet or by entering a cancer-related word or phrase in the search box.
- anaplastic thyroid cancer
- listen (A-nuh-PLAS-tik THY-royd KAN-ser)
- A rare, aggressive type of thyroid cancer in which the malignant (cancer) cells look very different from normal thyroid cells.