120 / 1708
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)