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