Difference between revisions of "Oligoastrocytoma"

Revision as of 06:51, 10 December 2014

Oligoastrocytoma is a rare neuropathology tumour.

Features:

Astrocytoma-like and oligodendroglioma-like:
1. Oligodendroglioma-like cells = round nucleus, peri-nuclear clearing.
2. Astrocytoma-like cells = non-ovoid/elongated nucleus.

DDx:

Others:

@@ Line 1: / Line 1: @@
-#redirect [[Neuropathology tumours#Oligoastrocytoma]]
+'''Oligoastrocytoma''' is a rare [[neuropathology tumour]].
+==General==
+*Mixed tumour.
+==Microscopic==
+Features:
+*Astrocytoma-like and oligodendroglioma-like:
+*#Oligodendroglioma-like cells = round nucleus, peri-nuclear clearing.
+*#Astrocytoma-like cells = non-ovoid/elongated nucleus.
+DDx:
+*Anaplastic astrocytoma.
+*Oligodendroglioma. (???)
+===IHC===
+*Oligodendroglioma-like cells: MAP-2 +ve (cytoplasm).
+*Astrocytoma-like cells: GFAP +ve (cytoplasm, nuclear membrane).
+Others:
+*Ki-67 ~10%. (???)
+*p53 - focally +ve. (???)
+*IDH-1 +ve. (85%)
+==See also==
+*[[Neuropathology tumours]].
+==References==
+{{Reflist|1}}
 [[Category:Diagnosis]]
+[[Category:Neuropathology tumours]]