Liquid nitrogen

Definition 
Nitrogen is typically found in its gaseous form. To become a liquid, nitrogen gas must release great amounts of heat, becoming super-cooled to about minus 200 degrees Celsius. It may be applied to diseased or cancerous tissue to kill the cells. Tissue that has been frozen falls off from the surrounding tissue.

Johns Hopkins patient information

Last revised: December 3, 2012
by Martin A. Harms, M.D.

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