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Diffuse (Fibrillary) Astrocytomas 01

Topic: Adult

Created on Sunday, October 12 2008 by jdmiles

Last modified on Sunday, October 12 2008.

Which of the following statements about diffuse (fibrillary) astrocytomas is most accurate?

 
        A) Pure astrocytomas have a better prognosis than do mixed oligodendrogliomas or oligoastrocytomas
 
        B) They occur only in the cerebral hemispheres
 
        C) They account for about 60% of primary intracranial neoplasms
 
        D) They are more common in males than in females
 
        E) They are more common in females than in males
 

 


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This question was created on October 12, 2008 by jdmiles.
This question was last modified on October 12, 2008.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANSWERS AND EXPLANATIONS




A) Pure astrocytomas have a better prognosis than do mixed oligodendrogliomas or oligoastrocytomas

This answer is incorrect.


Pure astrocytomas have a worse prognosis than do mixed oligodendrogliomas or oligoastrocytomas   (See References)

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B) They occur only in the cerebral hemispheres

This answer is incorrect.


While most diffuse (fibrillary) astrocytomas arise in the cerebral hemispheres, they may occur anywhere in the neuraxis.   (See References)

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C) They account for about 60% of primary intracranial neoplasms

This answer is incorrect.


Diffuse (fibrillary) astrocytomas make up about 40% of primary intracranial tumors.   (See References)

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D) They are more common in males than in females

This answer is correct.


Diffuse (fibrillary) astrocytomas have a male:female ratio of about 3:2.   (See References)

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E) They are more common in females than in males

This answer is incorrect.


Diffuse (fibrillary) astrocytomas have a male:female ratio of about 3:2.   (See References)

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References:

1. Prayson, R.A., and Goldblum, J.R. (Eds.) (2005). Neuropathology. Elsevier Churchill Livingstone, Philadelphia. (ISBN:0443066582) Advertising:
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adult
Diffuse (Fibrillary) Astrocytomas 01
Question ID: 101208106
Question written by J. Douglas Miles, (C) 2006-2009, all rights reserved.
Created: 10/12/2008
Modified: 10/12/2008
Estimated Permutations: 50400

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