SIR: Percutaneous Cryoablation Effective Against Kidney Cancer

WASHINGTON, March 18 -- Percutaneous cryoablation stops kidney cancer cold, researchers said here. A year after treatment, between 94% and 97% of tumors treated by the minimally invasive technique had not recurred, according to two studies presented at the annual meeting of the Society of Interventional Radiology. The method, which involves freezing the heart of the tumor to about minus 150 degrees Celsius, should now be seen as a "curative minimally invasive treatment for kidney tumors," said Hussein Aoun, M.D., of Wayne State University in Detroit.

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