[The clinical picture and pathogenetic problems of epileptic seizures in brain tumors]

The authors studied 600 cases of supratentorial tumors of the brain. The clinical picture in 306 of them (51%) was marked by epileptic seizures. They analysed the frequency of various types of epileptic seizures according to the localization and histological structure of the tumors. On basis of the results of complex clinico-electrophysiological examination a conception of the formation of the epileptic system and some pathogenetic mechanisms of epileptic seizure development in brain tumors is suggested.