cryosurgery

n. use of very low temperatures to destroy tissue

Cryosurgery (cryotherapy) is the application of extreme cold to destroy abnormal or diseased tissue. Cryosurgery comes from the Greek cryo (κρύο) meaning icy cold and the word surgery (cheirourgiki - χειρουργική) meaning literally hand work or HandiworkCryosurgery is used to treat a number of diseases and disorders, especially skin conditions.
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Cryosurgery /cryo·sur·gery/ the destruction of tissue by application of extreme cold. cry·o·sur·ger·y n. [more]Cryosurgery - Community and Resources

Noun
1. the use of extreme cold (usually liquid nitrogen) to destroy unwanted tissue (warts or cataracts or skin cancers)
(hypernym) operation, surgery, surgical operation, surgical procedure, surgical process

Treatment performed with an instrument that freezes and destroys abnormal tissue.