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