[Global amnesia syndrome among the initial clinical manifestations of brain tumors].

Global amnesia is observable in different lesions of the nervous system, including glial tumors of the brain. It is emphasized that global amnesia may turn out to be the first clinical manifestation of brain tumors. In such a case severe mnemonic disorders are likely to regress under the influence of vasoactive and dehydration therapy, which does not exclude, however, their tumorous genesis. These data should be taken into consideration during analysis of mnemonic disorders in neurological patients. All the patients with the above syndrome should be subjected to a long follow-up even in cases where the syndrome completely regresses under the therapeutic influence.