“…Another 40-50% of patients will eventually develop liver metastasis during the course of their illness, which is commonly the cause of death (Bentrem, et al, 2005, Stangl, et al, 1994, Sugarbaker, 1990. At present, liver resection is considered the treatment of choice for suited patients with colorectal liver metastases, offering a five-year survival rate of 25-44% (Choti, et al, 2002, Garden, et al, 2006, Zacharias, et al, 2004 to those 20-25% of patients with isolated liver metastasis (Adson, et al, 1984, Bismuth, et al, 1996, Fong, et al, 1999. Unfortunately, this procedure is feasible only in patients with no signs of irresectable extra-hepatic disease, whereas the median survival is only 9-19 months for patients with unresectable disease who receive systemic chemotherapy (de Gramont, et al, 2000, Giacchetti, et al, 2000, Meyerhardt and Mayer, 2005, Saltz, et al, 2000.…”