NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,777 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.

TPA
A substance being studied in the treatment of leukemias and lymphomas. It is also being studied in the treatment of other types of cancer. TPA affects many cell actions and may cause tumor cells to die. It is a type of phorbol ester. Also called 12-O-tetradecanoylphorbol-13-acetate and tetradecanoylphorbol acetate.