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Fast Facts for Patients: Colorectal Cancer with KRAS Mutation
Colorectal cancer (CRC) is cancer that begins in the colon or rectum of the digestive system. KRAS is a protein that sends signals to cells telling them to divide. In healthy cells, KRAS can be switched on and off. In some cancer cells, gene mutations cause changes in the KRAS protein that mean it is constantly switched on, driving cells to divide.