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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) Psammoma bodies are commonly associated with ependymoma.
 
        B) Rosenthal Fibers are commonly associated with pilocytic astrocytoma.
 
        C) Perivascular pseudorosettes are commonly associated with schwanoma.
 
        D) Perivascular pseudorosettes are commonly associated with Alexander's disease.
 
        E) B cells in an angiocentric pattern are commonly associated with oligodendroglioma.
 

 


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ANSWERS AND EXPLANATIONS




A) Psammoma bodies are commonly associated with ependymoma.

This answer is incorrect.


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

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B) Rosenthal Fibers are commonly associated with pilocytic astrocytoma.

This answer is correct.


The statement, "Rosenthal Fibers are commonly associated with pilocytic astrocytoma." is true.
Rosenthal Fibers are commonly associated with pilocytic astrocytoma, and are commonly associated with Alexander's disease.  (See References)

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C) Perivascular pseudorosettes are commonly associated with schwanoma.

This answer is incorrect.


The statement, "Perivascular pseudorosettes are commonly associated with schwanoma." is false.
Perivascular pseudorosettes are commonly associated with ependymoma.  (See References)

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D) 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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E) B cells in an angiocentric pattern are commonly associated with oligodendroglioma.

This answer is incorrect.


The statement, "B cells in an angiocentric pattern are commonly associated with oligodendroglioma." is false.
B cells in an angiocentric pattern are commonly associated with primary CNS lymphoma.  (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
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