![](https://webarchive.library.unt.edu/eot2008/20090511052417im_/http://www.cancer.gov/images/spacer.gif) |
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![](https://webarchive.library.unt.edu/eot2008/20090511052417im_/http://www.cancer.gov/images/spacer.gif)
![](https://webarchive.library.unt.edu/eot2008/20090511052417im_/http://www.cancer.gov/images/spacer.gif)
| Examen de sangre que mide la concentración del antígeno prostático específico (PSA, por sus siglas en inglés), que es una sustancia que produce la próstata y algunos otros tejidos del cuerpo. Concentraciones elevadas del PSA pueden ser un signo de cáncer de próstata. |
![](https://webarchive.library.unt.edu/eot2008/20090511052417im_/http://www.cancer.gov/images/spacer.gif)
![](https://webarchive.library.unt.edu/eot2008/20090511052417im_/http://www.cancer.gov/images/gray_spacer.gif)
![](https://webarchive.library.unt.edu/eot2008/20090511052417im_/http://www.cancer.gov/images/spacer.gif)
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![](https://webarchive.library.unt.edu/eot2008/20090511052417im_/http://www.cancer.gov/images/spacer.gif) |