[Carcinoembryonic antigen and immunoglobulin IgE in duodenal ulcer disease in children].

The aim of this study was to monitor the behaviour of carcinoembryonic antigen (CEA) and immunoglobulin IgE level in children with duodenal ulcer disease. No sex-dependent differences were found in mean values of CEA, whereas the mean IgE level in boys was twice as high as in girls. No seasonal differences in CEA and IgE levels were found. The IgE concentration increased during exacerbations, and this difference was statistically significant. CEA levels changed according to a similar pattern during exacerbation and remission, but remained within normal limits.