although the ca19-9 marker can be elevated with other intraabdominal adenocarcinomas ( e.g. , gastric , biliary , or colonic ) , ca19-9 , together with cea , will be useful to the clinician in differentiating benign from malignant pancreatic processes and in alerting the clinician to the possible presence of an intraabdominal neoplasm in the proper clinical setting .
C0230168
intraabdominal
C0038351
gastric