Epilepsy surgery, Acoustic neuroma surgery, Endoscopic procedure, Minimally invasive neurosurgery, Computer assisted br...ain surgery, Skull base surgery, Intraoperative magnetic resonance imaging, Pituitary tumor surgery, CSF leak, Cavernous malformations, Epilepsy, Brain tumor, Pituitary tumor, Acoustic neuroma, Chondrosarcoma, Chordoma, Craniopharyngioma, Meningioma, Skull base tumor