Tumor marker detection revealed that the level of carcinoembryonic antigen in the blood serum was high in one patient (4.01 ng/ml; normal range, 0–3.4 ng/ml) and that the ferritin level was high in two patients (193.0 and 181.7 ng/ml; normal range, 13–150 ng/ml). The gene discussed is CEACAM5; the disease is neoplasm.