![](https://webarchive.library.unt.edu/eot2008/20081103103143im_/http://www.cancer.gov/images/spacer.gif) |
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(ih-MAH-tih-nib MEH-zih-layt)
![](https://webarchive.library.unt.edu/eot2008/20081103103143im_/http://www.cancer.gov/images/spacer.gif)
| A drug used to treat different types of leukemia and other cancers of the blood, gastrointestinal stromal tumors, skin tumors called dermatofibrosarcoma protuberans, and a rare condition called systemic mastocytosis. It is also being studied in the treatment of other types of cancer. Imatinib mesylate blocks the protein made by the bcr/abl oncogene. It is a type of tyrosine kinase inhibitor. Also called Gleevec and STI571. |
Previous Definitions: | IM, IM-862, imagery, imaging, imaging procedure | Next Definitions: | imexon, imipenem, imiquimod, immature teratoma, IMMU-106 |
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![](https://webarchive.library.unt.edu/eot2008/20081103103143im_/http://www.cancer.gov/images/spacer.gif) |