![](https://webarchive.library.unt.edu/eot2008/20090514050716im_/http://www.cancer.gov/images/spacer.gif) |
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(VA-rih-kose VAYN)
![](https://webarchive.library.unt.edu/eot2008/20090514050716im_/http://www.cancer.gov/images/spacer.gif)
| A condition in which a vein, most often in the legs, becomes permanently enlarged, twisted, and painful. This may be caused by valves in the vein that don’t work properly or by weakness in the vein walls. |
Previous Definitions: | valrubicin, vancomycin, vandetanib, vapreotide, varenicline tartrate | Next Definitions: | VAS, vas deferens, vascular endothelial growth factor, vascular endothelial growth factor receptor tyrosine kinase inhibitor, vascular endothelial growth factor-antisense oligonucleotide |
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