Difference between revisions of "Neuropathology tumours"

Neuropathology tumours (view source)

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 *Bcl-6 +ve.
 *Bcl-1 -ve.
+==Neurocytoma==
+===General===
+*Rare.
+===Microscopic===
+Features:
+*Pineocytomatous/neurocytic rosette = irregular rosette with a large meshwork of fibers (neuropil) at the centre.<ref name=pmid16551982>{{cite journal |author=Wippold FJ, Perry A |title=Neuropathology for the neuroradiologist: rosettes and pseudorosettes |journal=AJNR Am J Neuroradiol |volume=27 |issue=3 |pages=488–92 |year=2006 |month=March |pmid=16551982 |doi= |url=}}</ref>
+**Similar to Homer-Wright rosette.
+Images:
+*[http://moon.ouhsc.edu/kfung/jty1/Composites/FNA0IE14-Neurocytoma-Micro.htm Neurocytoma (ouhsc.edu)].
+==Central neurocytoma==
+===General===
+*Rare.
+===Microscopic===
+*Perivascular pseudorosette = circular/flower-like arrangement of cells with blood vessel at the centre.<ref name=pmid16551982>{{cite journal |author=Wippold FJ, Perry A |title=Neuropathology for the neuroradiologist: rosettes and pseudorosettes |journal=AJNR Am J Neuroradiol |volume=27 |issue=3 |pages=488–92 |year=2006 |month=March |pmid=16551982 |doi= |url=}}</ref>
+*Islands of neuropil.
+DDx of perivascular pseudorosette:
+*Ependymoma.
+*[[Medulloblastoma]], PNET.
+*[[Glioblastoma]]s.
+Images:
+*[http://moon.ouhsc.edu/kfung/jty1/Com/Com307-1-Diss.htm Central neurocytoma - several images (ouhsc.edu)].
+*[http://frontalcortex.com/?page=image&topic=1&qid=1203 Central neurocytoma (frontalcortex.com)].
 ==Lesions of the sella turcica==