[Encephalographic findings in tumors of the pineal region (author's transl)].

6 encephalograms were selected from a series of 31 patients with clinical and radiological signs of a tumor in the pineal region, in order to obtain differential diagnostic criteria concerning space occupying lesions of this area. Neuroradiologically, it is possible only in a very few cases to decide whether a tumor had arisen from the pineal gland or from adjacent structures of the midbrain. At the time of the radiological examination usually the tumor has reached a size that an encephalographic distinction between pineal gland and quadrigeminal plate cannot be made. Computerized axial tomography can contribute essentially to solve this problem as shown by one example.