Computer assisted brain surgery, Brain stereotactic radiosurgery, Brain tumor surgery, Awake brain surgery, Intraoperat...ive magnetic resonance imaging, Craniotomy, Hemangioblastoma, Pineal tumor, Meningioma, Astrocytoma, Ependymoma, Brain tumor, Glioblastoma, Medulloblastoma, Oligodendroglioma, Brain metastasis