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CNS tumor pathology

Topic: Imaging

Created on Saturday, September 2 2006 by

Last modified on Saturday, September 2 2006.

Which of the following is most accurate regarding CNS tumor pathology?

 
        A) Pseudopallisading and necrosis are commonly associated with pilocytic astrocytoma.
 
        B) B cells in an angiocentric pattern are commonly associated with primary CNS lymphoma.
 
        C) Psammoma bodies are commonly associated with PNET tumors.
 
        D) Homer-Wright rosettes are commonly associated with oligodendroglioma.
 
        E) Perivascular pseudorosettes are commonly associated with Alexander's disease.
 

 


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This question was last modified on September 02, 2006.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANSWERS AND EXPLANATIONS




A) Pseudopallisading and necrosis are commonly associated with pilocytic astrocytoma.

This answer is incorrect.


The statement, "Pseudopallisading and necrosis are commonly associated with pilocytic astrocytoma." is false.
Pseudopallisading and necrosis are commonly associated with glioblastoma multiforme.  (See References)

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B) B cells in an angiocentric pattern are commonly associated with primary CNS lymphoma.

This answer is correct.


The statement, "B cells in an angiocentric pattern are commonly associated with primary CNS lymphoma." is true.
B cells in an angiocentric pattern are commonly associated with primary CNS lymphoma.  (See References)

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C) Psammoma bodies are commonly associated with PNET tumors.

This answer is incorrect.


The statement, "Psammoma bodies are commonly associated with PNET tumors." is false.
Psammoma bodies are commonly associated with meningioma.  (See References)

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D) Homer-Wright rosettes are commonly associated with oligodendroglioma.

This answer is incorrect.


The statement, "Homer-Wright rosettes are commonly associated with oligodendroglioma." is false.
Homer-Wright rosettes are commonly associated with medulloblastoma, and are commonly associated with PNET tumors.  (See References)

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E) Perivascular pseudorosettes are commonly associated with Alexander's disease.

This answer is incorrect.


The statement, "Perivascular pseudorosettes are commonly associated with Alexander's disease." is false.
Perivascular pseudorosettes are commonly associated with ependymoma.  (See References)

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References:

1. Geyers, J.D., Keating, J.M., and Potts, D.C. (2002). Neurology for the Boards, 2nd Edition. Lippincott Williams & Wilkins, Philadelphia.
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imaging
CNS tumor pathology
Question ID: 623249000
Question written by . (C) FrontalCortex.com 2006-2009, all rights reserved. Created: 09/02/2006
Modified: 09/02/2006
Estimated Permutations: 0

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