[Ependymoma of the cauda equina presenting as raised intracranial pressure without ventricular dilatation. One case (author's transl)].

Intracranial hypertension is a rare phenomenon in the development of intra-spinal neoplasm. In the present case, it occurred without ventricular dilatation raising the problem of the underlying mechanism. Perturbations in the CSF reabsorption would appear less likely than an increase in brain volume, where cerebral edema may play an important role.