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.

Velsar
(VEL-sar)
A drug used to treat several types of cancer, including breast cancer and a type of gestational trophoblastic tumor that have not gotten better with other treatment, lymphoma, testicular cancer, Kaposi sarcoma, and mycosis fungoides. It is also being studied in the treatment of other types of cancer. Velsar blocks cell growth by stopping cell division and may kill cancer cells. It is a type of vinca alkaloid and a type of antimitotic agent. Also called Velban and vinblastine sulfate.