Severance Hospital in Seoul is JCI-accredited and has 1,300 doctors including 395 professors. Diagnostics for cavernoma start with neurosurgeon consultations from around A$60, neurologist consultations from around A$80, and MRI scans from about A$1,500. Treatment options include non-invasive Gamma Knife radiosurgery, which may cost around A$16,400. The hospital performs 40,000 surgeries annually and offers robotic surgery alongside advanced radiation therapies, supported by partnerships with top US cancer centres like Johns Hopkins.