Abstract
To date, surgery of colorectal liver metastases is the only chance of long-term survival with the principle of resecting all the metastases to be potentially curative (R0-R1 resection). However, 10-20% of patients are initially resectable. Along with the increasing efficacy of chemotherapy, around 20% of initially unresectable patients could be switched to secondary resectability after tumor downsizing with real hope of long-term survival. However, still a majority of patients remain "curatively" unresectable while responding to chemotherapy, owing to the impossibility to resect all the initial tumoral disease. For such extensive cases, cytoreductive surgery might provide a survival benefit, provided an objective tumor response with chemotherapy and optimal cytoreduction with almost no macroscopic residual disease.
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