"Cryotherapy for Primary Liver Cancer."

According to the authors' abstract of an article published in Seminars in Surgical Oncology, "Between November 1973 and December 1996, the in situ freezing of tumor, i.e., cryotherapy, was performed with liquid nitrogen (-196(degree)C) on 235 patients with primary liver cancer (PLC). There were no operative mortalities or severe complications. The 5-year survival was 39.8% for the 235 PLC patients, and 55.4% for the 80 patients with small PLC ({{<=}}5 cm). When analyzed with respect to treatment modalities without considering the size of the tumor, the 5-year survival was 26.9% for 78 PLC patients treated by cryotherapy alone; 39.6% for 58 PLC patients treated by cryotherapy plus...

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