When comparing true‐positive rates in the same patient, the methylated BCAT1/IKZF1 blood test had a significantly higher sensitivity for recurrent CRC than the CEA test (Tables 2 and 3), and in this study, the BCAT1/IKZF1 blood test correctly identified 10 additional cases of recurrent CRC. This evidence concerns the gene BCAT1 and colorectal carcinoma.