WHO Classification
I. Tumors of neuroepithelial tissue
(i) Astrocytic tumors.
1. Astrocytic tumors.
Fibrous type
Protoplasmic type
Obese cell type
Mixed type
2. Mesenchymal (malignant) astrocytoma
3. Glioblastoma.
Giant cell glioblastoma
Gliosarcoma
4. Hair-type astrocytoma
5. Pleomorphic yellow astrocytoma
6. Subventricular giant cell astrocytoma (nodular sclerosis)
(B) oligodendroglial tumors
1. oligodendroglial cell tumor
2. Interstitial (malignant) oligodendroglial cell tumor
(C) ventricular tumor
1. Ventricular meningeal tumor.
Cellular type
papillary type
Epithelial type
Clear cell type
Mixed type
2. Interstitial (malignant) ventricular meningioma
3. Mucinous papillary ventricular meningioma
4. Subventricular ventricular meningioma
(D) Mixed glioma
1. oligodendroglial astrocytoma
2. Mesenchymal (malignant) oligodendrocytoma
3. Others
(E) Choroid plexus tumor
1. papillary tumor of choroid plexus
2. Choroid plexus carcinoma
(F) Neuroepithelial tumors of undetermined origin
1. Astroblastoma
2. Polar glioblastoma
3. Gliomatosis cerebri (brain glioma)
(vii) Neuronal and mixed neuronal and glial cell tumors
1. Nodal cell tumor
2. Dysplastic ganglioneuroma of the cerebellum
3. Infantile ganglioneuroma with multifibrillary tissue
4. Embryonic dysplastic neuroepithelial tumor
5. Ganglioglioma
6. Mesenchymal (malignant) ganglioglioma
7. Central neuroblastoma
8. Paraganglioma of the terminal filament
9. Olfactory neuroblastoma (olfactory neuroblastoma)
(H) Pineal tumor
1. Pineal cell tumor
2. Pineal cell tumor
3. Mixed tumor of pineal cells and pinealoblast
(ix) Embryonal tumors
1. Medullary epithelial tumor
2. neuroblastoma (ganglioneuroblastoma)
3. Ventriculoblastoma
4. Primitive neuroectodermal tumors (PNETs) (with pluripotent differentiation: neuronal, astrocytic, ventricular meningeal, myxomatous, melanotic, etc.)
(1) Medulloblastoma: multifibrillary medulloblastoma, myoblastoma, melanotic medulloblastoma
(2) PNETs of the brain or spinal cord