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) Gaping foramen magnum B) Fenestrated fax C) Normal with no defects D) Small posterior fossa E) Calvarial defects
This question was created on November 08, 2008 by rednucleus.
This question was last modified on November 08, 2008.
ANSWERS AND EXPLANATIONS
A) 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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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) 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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D) 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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E) 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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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