CEACAM5 and neoplasm: In a wider cohort of 514 patients treated between 2004 and 2019 with mainly three-dimensional (3D) RT and two-dimensional (2D) RT with a total dose of 45 Gy to the whole pelvis and a tumor boost, longitudinal tumor diameter, extramural tumor invasion depth, CEA, hemoglobin levels, age, and interval between CRT and surgery were combined in a nomogram.