[Radiologic diagnosis of acoustic neurinoma. Apropos of 130 patients].

Diagnostic value of radiologic examinations was assessed in a homogeneous series of 130 cases of neurinoma of acoustic nerve seen over the last 10 years. Radiologic exploration is conceived and used at the present time for two purposes. Firstly, it enables selection of patients with suspected acoustic nerve neurinoma. Radiotomography appears to be currently an accessory examination because of the discriminative performance of early auditory evoked potentials tests on the brain stem. Secondly, radiology is necessary for confirmation of diagnosis. Visualization of the tumoral syndrome can be obtained only by a scan or possibly opaque or gas meatocisternography.