[Changes in the frequency of childhood brain tumors in North-East Hungary].

Authors report about a seemingly increase of the number of pediatric brain tumors in Borsod county region North-East Hungary. In a retrospective study they conclude, that this phenomenon may to a great extent be artificial, that is, it may reflect the improvement of diagnostic possibilities, above all the new imaging modalities. At their Institution the pattern of brain tumors is similar to that reported in the literature. In addition a racial difference has been detected, since the gipsy population of this region seems to have lower incidence of pediatric brain tumor than the Hungarian majority.