[Tetraventricular ependymoma. Presentation of a case].

The clinical study of encephalic ependymoma shows that cases present with polymorphous clinical pictures depending on intra and/or periventricular tumoural growth, generally such as to hinder precise diagnosis during life, unless under direct control, or, currently, using computerized axial tomography. The reported case, completed by macro and microscopic autoptic study, takes on particular importance because the neoplasia involved all encephalic ventricular cavities. This exceptional localisation and extension, only gave an aspecific clinical picture, dominated by the presence of a slight internal communicating type hydrocephalus and immediate general convulsive signs.