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(MEE-dee-as-tih-NOS-koh-pee)
![](https://webarchive.library.unt.edu/eot2008/20090115232603im_/http://www.cancer.gov/images/spacer.gif)
| A procedure in which a mediastinoscope is used to examine the organs in the area between the lungs and nearby lymph nodes. A mediastinoscope is a thin, tube-like instrument with a light and a lens for viewing. It may also have a tool to remove tissue to be checked under a microscope for signs of disease. The mediastinoscope is inserted into the chest through an incision above the breastbone. This procedure is usually done to get a tissue sample from the lymph nodes on the right side of the chest. |
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