![](https://webarchive.library.unt.edu/eot2008/20090514031922im_/http://www.cancer.gov/images/spacer.gif) |
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(ek-STRA-vuh-SAY-shun)
![](https://webarchive.library.unt.edu/eot2008/20090514031922im_/http://www.cancer.gov/images/spacer.gif)
| The leakage of blood, lymph, or other fluid, such as an anticancer drug, from a blood vessel or tube into the tissue around it. It is also used to describe the movement of cells out of a blood vessel into tissue during inflammation or metastasis (the spread of cancer). |
Previous Definitions: | extrahepatic bile duct cancer, extranodal, extraocular, extraosseous, extrapleural pneumonectomy | Next Definitions: | eye cancer, EZN-2285, F-18 16 alpha-fluoroestradiol, F-18 FES, falimarev |
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![](https://webarchive.library.unt.edu/eot2008/20090514031922im_/http://www.cancer.gov/images/spacer.gif) |