RAS Mutation Clinical Risk Score to Predict Survival After Resection of Colorectal Liver Metastases.

Objective:To determine the impact of RAS mutation status on the traditional clinical score (t-CS) to predict survival after resection of colorectal liver metastases (CLM).Background:The t-CS relies on the following factors: primary tumor nodal status, disease-free interval, number and size of CLM, a