Figure 4.

(a) Patient was initially operated under general anesthesia, and partial removal of seen tumor was removed for histopathological examination. Grid electrodes were laid onto the surface which was identified as language area on extraoperative neuronavigated data. (b) Further removal of the tumor was made under awake state and spared the language-related areas. (c) After aggressive surgery, the tumoral bed was irradiated with intraoperative radiation therapy. (d) The postoperative magnetic resonance imaging at four months