Craniotomy, Gamma knife surgery, Awake brain surgery, Skull base surgery, Pituitary tumor surgery, Endoscopic transnasa...l transsphenoidal surgery, Endoscopic skull base surgery, CSF leak, Trigeminal neuralgia, Glioma, Brain tumor, Subdural hematoma, Pituitary tumor, Brain cancer, Chondrosarcoma, Chordoma, Craniopharyngioma, Meningioma, Brain metastasis, Glioma-associated epilepsy, Schwannoma, Encephalocele, Brain tumor-associated epilepsy, Skull base tumor