Ezrina in vitro assay for the diagnosis of colorectal cancer

In vitro assay of colorectal cancer by determining the increase in concentration diagnosis, with respect to reference values ​​determined for healthy subjects, the marker Ezrina in a biological sample from a patient suspected of having colorectal cancer using at least one antibody monoclonal anti-ezrin directed against an epitope of the selected ezrin between the epitopes SEQ ID No. 1, SEQ ID No. 2, SEQ ID 3, SEQ ID NO: 4 + SEQ ID NO: 5, SEQ ID NO: 6 + SEQ ID NO 7 and SEQ ID NO: 8.