CEACAM5 and neoplasm: The scoring points for cT-stage (cT1-2 = 0, cT3 = 0.5, and cT4 = 1), tumour length (≤3.5 cm = 0, 4–7 cm = 0.5, and >7 cm = 1), CEA (≤3 μg/L = 0, 3–5 μg/L = 0.5, and >5 μg/L = 1), and leucocytes (≤8.2–109/L = 0, 8.3–109/L = 0.5, and >109/L = 1) were combined, thus resulting in a maximum score of 4.