CEACAM5 and neoplasm: Other common predictors included histopathological risk factors such as positive lymph nodes (N = 3, 25%), tumor grade or differentiation (N = 2, 17%), and tumor histological type (N = 3, 25%); biomarker-carcinoembryonic antigen (CEA) (N = 3, 25%); age (N = 3, 25%); gender (N = 2, 17%); and clinical treatment such as surgery, chemotherapy, and radiotherapy (N = 3, 25%).