Table 3.
*No stem sign : headache, dizziness, seizure, Stem sign : mental changes, motor weakness, cranial nerve deficit, †Group I : cerebellopontine angle & cerebellar convexity, Group II : tentorial & peritorcular, Group III : skull base location including petroclival, foramen magnum, and jugular foramen, ‡Reference variable : non-skullbase location groups (Group I+II). Cx : complication, KPS : Karnofsky performance scale, ND : non-detected, WHO : World Health Organization