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Laser

Glossary

laser

A device that forms light into intense, narrow beams that may be used to cut or destroy tissue, such as cancer tissue. It may also be used to reduce lymphedema (swelling caused by a buildup of lymph fluid in tissue) after breast cancer surgery. Lasers are used in microsurgery, photodynamic therapy, and many other procedures to diagnose and treat disease.

Last updated: 2014-02-26

Source: The National Cancer Institute's Dictionary of Cancer Terms (http://www.cancer.gov/dictionary)