Review
Copyright ©The Author(s) 2015.
World J Neurol. Sep 28, 2015; 5(3): 88-101
Published online Sep 28, 2015. doi: 10.5316/wjn.v5.i3.88
Table 2 Primary glioblastoma multiforme vs secondary glioblastoma multiforme
Primary GBMSecondary GBM
Mean age at diagnosisApproximately 62 yr of ageApproximately 45 yr of age
Percentage of cases> 90%< 10%
Clinical courseRapidSmoldering
OriginDe novoGrade II/III astrocytomas