Difference between revisions of "Neuropathology tumours"

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(→‎Astroblastoma: are now part of the CNS-PNET family.)
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* [[Central Neurocytoma]] / Extraventricular [[neurocytoma]]
* [[Central Neurocytoma]] / Extraventricular [[neurocytoma]]
* Cerebellar liponeurocytoma
* Cerebellar liponeurocytoma
* [[Papillary glioneuronal tumour]]
* [[Papillary glioneuronal tumour]] (PGNT)
* Rosette-forming glioneuronal tumour of the fourth ventricle
* [[Rosette-forming glioneuronal tumour of the fourth ventricle]] (RGNT)
* Gangliocytoma / Ganglioglioma
* Gangliocytoma / Ganglioglioma
* Dysplastic ganglioglioma of the cerebellum (Lhermitte-Duclos)
* Dysplastic ganglioglioma of the cerebellum (Lhermitte-Duclos)
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* Abbreviated ''PGNT''.
* Abbreviated ''PGNT''.
* A benign, supratentorial tumor of childhood.
* A benign, supratentorial tumor of childhood.
** Biologic course corresponds to WHO I
** Biologic course corresponds to WHO grade I.
** Before WHO 2000, considered a [[Ganglioglioma]] variant.
** Before WHO 2000, considered a [[Ganglioglioma]] variant.
*Prominent pseudopapillary architecture.
*Prominent pseudopapillary architecture.
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<gallery>
<gallery>
File:PGNT_HE_stain.jpg | PGNT (HE) (WC/jensflorian)
File:PGNT_HE_stain.jpg | PGNT (HE) (WC/jensflorian)
</gallery>
===Rosette-forming glioneuronal tumour of the fourth ventricle===
* Abbreviated ''RGNT''.
* Provisional ICD-O code: 9509/1
* A rare benign infratentorial tumour of the midline of children and adults.
* Biologic course corresponds to WHO grade I.
* Glial component corresponds to [[pilocytic astrocytoma]].
* Neurocytic rosettes.
* Eosinopil fibrillary cores / pseudorosettes.
* GFAP+ in fibrillary areas, Syn+ in rosettes.
* Neurocytic cells: MAP2+
* MIB-1 usu. below 3%.
<gallery>
File:Histology RGNT HE.jpg | RGNT, HE stain (WC/jensflorian).
File:RGNT HE 2.jpg | RGNT, higher magnification (WC/jensflorian).
</gallery>
</gallery>


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