CEACAM5 and neoplasm: Other tumor markers such as carbohydrate antigen 125 (CA125) (1 out of 6, 16.7%), carbohydrate antigen 19-9 (CA19-9) (3 out of 6, 50%), and carcinoembryonic antigen (CEA) (3 out of 6, 50%) were only slightly elevated in a few patients.