CEACAM5 and neoplasm: Laboratory data showed a slightly elevated hemoglobin A1c of 6.8% and tumor markers were as follows: carcinoembryonic antigen (CEA), 3.7 ng/mL; cancer antigen-19–9 (CA19-9), 147 U/mL; cancer antigen-125, 42 U/mL; DUPAN-2, 120 U/mL; and Span-1, 72 U/m.