Cryosurgery for Hepatic Malignancies

摘要: It was estimated that there would be 131,200 new cases of colon and rectal cancer in 1997 the United States 54,900 deaths due to cancer.1 Ninety percent patients who die from colorectal have liver metastases.2 The is most prevalent site first or only recurrence.3 Liver metastases occur 40–75% with cancer, but 10–30% metastatic disease limited liver.4,5 Surgical resection hepatic remains treatment choice when feasible, 5–10% are considered candidates for resection.6,7 Patients do not undergo rarely survive more than 2 years after diagnosis.8,9 Five-year survival rates 25–35% been reported undergone metastases.10,11 Unfortunately, at least 75% liver-only surgical resection.12 multiple involving both right left lobes liver, lesions proximity major blood vessels biliary structures where a 1-cm margin clearance cannot achieved, three four usually unresectable qualify standard resection.8,10,13,14