Severance Hospital in Seoul is JCI-accredited and partners with Anderson Cancer Center and Johns Hopkins University. It uses robotic surgery and IMRT for glioblastoma treatment. Diagnostics start from around A$60 for a neurosurgeon consultation, with MRI from A$1,300 and PET/CT scans around A$1,500. Gamma Knife radiosurgery may cost around A$16,400, offering precise, single-session, outpatient tumour treatment without incisions or general anaesthesia. The centre treats a high volume with 40,000+ surgeries yearly, showing strong clinical expertise.