CEACAM5 and neoplasm: The score comprising of Tumor load, CA 19–9 and/or CEA, as well as Karnofsky (TuCK) discriminated two groups of patients with a median survival of 10.4 versus 5.1 months if each factor was attributed 1 point along with summing up patients with 0 and 1 versus 2 and 3 points.