paediatrics Brussels 17

Ependymoma - background

• Infratentorial tumors grow exophytically from the ventricular surface of medulla: Floor of 4V (60%): extending through Magendie onto dorsal surface of cord Lateral aspect of 4V (30%): extending through Luschka into CP angle and over anterolateral aspect of pons, medulla Roof of 4V (10%) • Similar presentation to MB but usually longer duration of symptoms (6-12 months v 4 months for MB’s)