NeurOnc 02

Topic: Pathology

Created on Sunday, February 8 2009 by gliageek

Last modified on Sunday, February 8 2009.

 
        A) Primary CNS lymphoma
 
        B) Oligodendroglioma
 
        C) Ganglioglioma
 
        D) Astrocytoma
 
        E) Dysembryoplastic neuroepithelial tumor
 

 

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This question was created on February 08, 2009 by gliageek.
This question was last modified on February 08, 2009.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANSWERS AND EXPLANATIONS

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A) primary CNS lymphoma

This answer is incorrect.

PCNSLs classicaly show perivascular growth, but NOT perineuronal accumulation  (See References)

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B) oligodendroglioma

This answer is correct.

Perivascular and perineuronal satellitosis is characteristic of oligodendroglioma spread into grey matter  (See References)

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C) ganglioglioma

This answer is incorrect.

As is typical for grade I tumors, gangliogliomas do not infiltrate adjacent cortical tissue  (See References)

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D) astrocytoma

This answer is incorrect.

Astrocytic tumors don't easily permeate into grey matter  (See References)

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E) dysembryoplastic neuroepithelial tumor

This answer is incorrect.

The "specific glioneuronal component" of DNT is composed of oligodendroglial-like cells containing morphologically normal neurons NOT tightly surrounded by the OLCs.  (See References)

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References:

1. Prayson, R.A., and Goldblum, J.R. (Eds.) (2005). Neuropathology. Elsevier Churchill Livingstone, Philadelphia. (ISBN:0443066582)

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pathology
NeurOnc 02
Question ID: 020809067
Question written by gliageek. (C) FrontalCortex.com 2006-2009, all rights reserved. Created: 02/08/2009
Modified: 02/08/2009
Estimated Permutations: 120