Preop MR scans   Preop MR scans   Preoperative positioning   1. Bone exposition     2. Surgical exposure of the dura mater   3. Surgical exposure of the tumor   4....

Bifrontal craniotomy   Bone fixation after bifrontal craniotomy

Preop MR scans   Bifrontal craniotomy   St. post extirp. tm.   St. post extirp. tumoris – NII bill. et chiasm n. II   Bifrontal dural sutures   Bone fixation after bifrontal...

  Tm ventriculi lateralis in obs.  (Subependioma ??). (2 years opservation)

Ependymoma reg LI-LII       PREOP   Ependymoma reg LI-LII       POSTOP

     Opening the dura mater  Exposure the tutor  After the tumor removal    

Typical intraoperative findig of cholesteatoma

Typical intraoperative findig of cholesteatoma