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Arnold!

Topic: Adult

Created on Saturday, November 8 2008 by rednucleus

Last modified on Saturday, November 8 2008.

You are discussing a case of Arnold-Chiari malformation in a 40-year-old man with your interns. One of them is asking about the possible defects that can affect the skull and dura in this patient. What would you tell him?

 
        A) Small posterior fossa
 
        B) Fenestrated fax
 
        C) Calvarial defects
 
        D) Normal with no defects
 
        E) Gaping foramen magnum
 

 


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This question was created on November 08, 2008 by rednucleus.
This question was last modified on November 08, 2008.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANSWERS AND EXPLANATIONS




A) Small posterior fossa

This answer is incorrect.


Note the age of the patient; this must be Chiari type I; the skull and dura in those patients are typically normal while type II Chiari patients can have calvarial defects, small posterior fossa, gaping foramen magnum, and fenestrated falx.  (See References)

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B) Fenestrated fax

This answer is incorrect.


Note the age of the patient; this must be Chiari type I; the skull and dura in those patients are typically normal while type II Chiari patients can have calvarial defects, small posterior fossa, gaping foramen magnum, and fenestrated falx.  (See References)

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C) Calvarial defects

This answer is incorrect.


Note the age of the patient; this must be Chiari type I; the skull and dura in those patients are typically normal while type II Chiari patients can have calvarial defects, small posterior fossa, gaping foramen magnum, and fenestrated falx.  (See References)

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D) Normal with no defects

This answer is correct.


Note the age of the patient; this must be Chiari type I; the skull and dura in those patients are typically normal while type II Chiari patients can have calvarial defects, small posterior fossa, gaping foramen magnum, and fenestrated falx.  (See References)

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E) Gaping foramen magnum

This answer is incorrect.


Note the age of the patient; this must be Chiari type I; the skull and dura in those patients are typically normal while type II Chiari patients can have calvarial defects, small posterior fossa, gaping foramen magnum, and fenestrated falx.  (See References)

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References:

1. Victor, M., and Ropper, A.H. (2001). Adams and Victor's Principles of Neurology, 7th Edition. McGraw-Hill, New York. (ISBN:0070674973)Advertising:
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adult
Arnold!
Question ID: 110808118
Question written by rednucleus. (C) FrontalCortex.com 2006-2009, all rights reserved. Created: 11/08/2008
Modified: 11/08/2008
Estimated Permutations: 120

User Comments About This Question:

1 user entries
 

jdmiles
adult References Nov 20, 2008 @ 09:24

Additional references are needed for this question.

Adams & Victor does not discuss these defects.



 
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