Abstract
Colorectal cancer is one of the most frequent malignant neoplasms.Up to 25% of patients with primary colorectal cancer have already liver metastatic disease at the time of diagnosis.Untreated patients with liver metastases share a poor prognosis with an average survival of 12 months.In contrast, patients whose metastatic lesions are surgically treated have an average 5-year survival rate of 40%.Only 10-15% of initial colorectal liver metastases are considered as being resectable.In the remaining patients, the current trend is to downstage initially unresectable metastases by neoadjuvant therapy (systemic or regional chemotherapy, portal vein embolization-PVE-or hepatic artery chemoembolization), tumor ablation and two-stage hepatectomy, alone or in combinations.This study reviews the current therapeutic options for colorectal liver metastases and their contribution to improve survival rates. Key words: Colorectal neoplasms; Neoplasm metastasis; Conversion therapy
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