CEACAM5 and neoplasm: In terms of tumor markers, the median serum CEA value was 4.8 ng/mL (range: 1.5–152.2 ng/mL), the median serum SCC value was 0.8 ng/mL (range: 0.1–19.7 ng/mL), and the median serum CYFRA value was 2.48 ng/mL (range: 0.59–53.08 ng/mL).