![](https://webarchive.library.unt.edu/eot2008/20081105112604im_/http://www.cancer.gov/images/spacer.gif) |
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(NEE-oh-PLA-zum)
![](https://webarchive.library.unt.edu/eot2008/20081105112604im_/http://www.cancer.gov/images/spacer.gif)
| An abnormal mass of tissue that results when cells divide more than they should or do not die when they should. Neoplasms may be benign (not cancerous), or malignant (cancerous). Also called tumor. |
Previous Definitions: | negative test result, nelarabine, nelfinavir mesylate, neoadjuvant therapy, neoplasia | Next Definitions: | neoplastic meningitis, nephrectomy, nephrologist, nephrostomy, nephrotomogram |
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![](https://webarchive.library.unt.edu/eot2008/20081105112604im_/http://www.cancer.gov/images/spacer.gif) |