Table 27.2
World Health Organization grading system of central nervous system tumours on a malignancy scale where Grade IV signifies greater malignancy
Tumour GroupTumour TypeGrade IGrade IIGrade IIIGrade IV

Astrocytic tumours

Subependymal giant cell

*

Pilocytic

*

Low grade

*

Pleomorphic xanthoastrocytoma

*

*

Anaplastic

*

Glioblastoma

*

Oligodendrogliomas

Low grade

*

Anaplastic

*

Oligo-astrocytomas

Low grade

*

Anaplastic

*

Ependymal tumours

Subependymoma

*

Myxopapillary

*

Low grade

*

Anaplastic

*

Choroid plexus

Papilloma

*

Carcinoma

*

*

Neuronal/Glial cell

Gangliocytoma

*

Ganglioglioma

*

*

Desmoplastic infantile ganglioglioma

*

Dysembryoplastic neuroepithelial

*

Central neurocytoma

*

Pineal tumours

Pineocytoma

*

Pineocytoma/pineoblastoma

*

*

Pineoblastoma

*

Embryonal tumours

Medulloblastoma

*

Other primitive neuroectodermal tumours

*

Medulloepithelioma

*

Neuroblastoma

*

Ependymomblastoma

*

Cranial/spinal nerve

Schwannoma

*

Malignant peripheral nerve sheath

*

*

Meningeal tumours

Meningioma

*

Atypical meningioma

*

Papillary meningioma

*

*

Haemangiopericytoma

*

*

Anaplastic meningioma

*

Tumour GroupTumour TypeGrade IGrade IIGrade IIIGrade IV

Astrocytic tumours

Subependymal giant cell

*

Pilocytic

*

Low grade

*

Pleomorphic xanthoastrocytoma

*

*

Anaplastic

*

Glioblastoma

*

Oligodendrogliomas

Low grade

*

Anaplastic

*

Oligo-astrocytomas

Low grade

*

Anaplastic

*

Ependymal tumours

Subependymoma

*

Myxopapillary

*

Low grade

*

Anaplastic

*

Choroid plexus

Papilloma

*

Carcinoma

*

*

Neuronal/Glial cell

Gangliocytoma

*

Ganglioglioma

*

*

Desmoplastic infantile ganglioglioma

*

Dysembryoplastic neuroepithelial

*

Central neurocytoma

*

Pineal tumours

Pineocytoma

*

Pineocytoma/pineoblastoma

*

*

Pineoblastoma

*

Embryonal tumours

Medulloblastoma

*

Other primitive neuroectodermal tumours

*

Medulloepithelioma

*

Neuroblastoma

*

Ependymomblastoma

*

Cranial/spinal nerve

Schwannoma

*

Malignant peripheral nerve sheath

*

*

Meningeal tumours

Meningioma

*

Atypical meningioma

*

Papillary meningioma

*

*

Haemangiopericytoma

*

*

Anaplastic meningioma

*

Close
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close

This PDF is available to Subscribers Only

View Article Abstract & Purchase Options

For full access to this pdf, sign in to an existing account, or purchase an annual subscription.

Close