Standard blood exams exhibited cholestasis (alkaline phosphatases 3.8 N, gama-glutamyl transpeptidases 37 N) and hyperamylasemia (1.9 N) with normal values of hemoglobin, white blood cells, platelets, carbohydrate antigen 19-9 (CA19-9) and carcinoembryonic antigen (CEA). The gene discussed is CEACAM5; the disease is hyperamylasemia.