NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 7,804 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.
- stage 0 medullary thyroid carcinoma in situ
- listen (... MED-yoo-LAYR-ee THY-royd KAR-sih-NOH-muh in SY-too)
- No tumor is found in the thyroid but abnormal cells are found by screening tests. These abnormal cells may become cancer and spread into nearby normal tissue.