Otoneurologic symptomatology in glial tumors of the cerebral hemispheres

: The author describes the otoneurological symptomatology of 213 patients with glial tumours of the hemispheres which were verified during surgical operations. The use of modern methods in studying the audition permitted to give a differentiated characteristics of vestibular and acoustic disorders. Vestibular disturbances irrespective of the tumor localization were more frequently seen. In moderately expressed general cerebral symptoms vestibular symptoms of the subcortical and diencephalic level prevailed. The authors mark their early appearance and especially their crude expressiveness in lesions of the posterior areas of the hemispheres. There were frequent combinations of vestibular disorders of a subcortical diencephalic level with cerebral posterior. The focal symptomatology depends upon the localization of the tumour.