![](https://webarchive.library.unt.edu/eot2008/20090514042327im_/http://www.cancer.gov/images/spacer.gif) |
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(PA-pil-eh-DEE-muh)
![](https://webarchive.library.unt.edu/eot2008/20090514042327im_/http://www.cancer.gov/images/spacer.gif)
| Swelling around the optic disk, the area where the optic nerve (the nerve that carries messages from the eye to the brain) enters the eyeball. Papilledema occurs when increased brain pressure caused by tumors or other problems results in swelling of the optic nerve. |
Previous Definitions: | papillary dermis, papillary serous carcinoma, papillary thyroid cancer, papillary tumor, papillary-reticular dermal interface | Next Definitions: | PAR-101, para-aminobenzoic acid, paracentesis, paraganglia, paraganglioma |
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![](https://webarchive.library.unt.edu/eot2008/20090514042327im_/http://www.cancer.gov/images/spacer.gif) |