Laboratory tests on admission showed high white blood cell count (13,400 cells/μL) and elevated levels of SCC marker (4.5 ng/mL), but did not show any disorder in other tests including blood coagulation tests and tumor markers: cancer antigen (CA) 19-9, 31 U/ml; and carcinoembryonic antigen (CEA), 1.0 ng/ml. Here, CEACAM5 is linked to neoplasm.