CEACAM5 and cyst: The mean cyst levels of amylase and CEA were as follows: IPMN (amylase of 72,204 U/L, CEA of 1325 ng/mL), for MCN (amylase of 116 U/L, CEA of 1369 ng/mL), for SCA (amylase of 495 U/L, CEA of 5.4 ng/mL) and for PC (amylase of 110,045 U/L, CEA of 137 ng/mL).