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Table 1 Effect of 2016 WHO classification on the subdivision of glioma subgroups

From: Clinical insights gained by refining the 2016 WHO classification of diffuse gliomas with: EGFR amplification, TERT mutations, PTEN deletion and MGMT methylation

 

WHO Classification 2016

Totals

GBM (IDH wt/IDH mut)

1p/19q codeleted and IDH mut

Astrocytoma (IDH wt/IDH mut)

NOS

WHO Classification 2007

GBM

256

0

0

0

256

Oligodendrogliomas (Grade II/III)

0

39

13

30

82 (52/30)

Astrocytoma (Grade II/III)

0

2

46

1

49 (21/28)

Oligoastrocytomas

0

8

35

10

53

NOS

0

0

4

0

4

 

Totals

256

49

98

41

444 (100%)