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Vascular Malformations 01

Topic: Behavior

Created on Friday, February 23 2007 by

Last modified on Friday, February 23 2007.

Which of the following statements regarding vascular malformations is FALSE?

 
        A) Capillary telangiectases are usually incidental findings.
 
        B) Cavernous angiomas are abnormal collections of thin-walled vessels without intervening brain tissue.
 
        C) Venous angiomas rarely become symptomatic.
 
        D) Cavernous angiomas are associated with a 1% annual risk of acute hemorrhage.
 
        E) Cavernous angiomas are similar to varicose veins.
 

 


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ANSWERS AND EXPLANATIONS




A) capillary telangiectases are usually incidental findings.

This answer is incorrect.


The statement, "capillary telangiectases are usually incidental findings." is true.
capillary telangiectases rarely become symptomatic, consist of dilated capillaries separated by normal brain tissue, and are usually incidental findings.  (See References)

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B) cavernous angiomas are abnormal collections of thin-walled vessels without intervening brain tissue.

This answer is incorrect.


The statement, "cavernous angiomas are abnormal collections of thin-walled vessels without intervening brain tissue." is true.
cavernous angiomas have an initial presentation of focal epilepsy in 1/3 of cases, are abnormal collections of thin-walled vessels without intervening brain tissue, and are associated with a 1% annual risk of acute hemorrhage.  (See References)

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C) venous angiomas rarely become symptomatic.

This answer is incorrect.


The statement, "venous angiomas rarely become symptomatic." is true.
venous angiomas rarely become symptomatic, are similar to varicose veins, and are dilated veins of the superficial or subcortical vasculature.  (See References)

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D) cavernous angiomas are associated with a 1% annual risk of acute hemorrhage.

This answer is incorrect.


The statement, "cavernous angiomas are associated with a 1% annual risk of acute hemorrhage." is true.
cavernous angiomas have an initial presentation of focal epilepsy in 1/3 of cases, are abnormal collections of thin-walled vessels without intervening brain tissue, and are associated with a 1% annual risk of acute hemorrhage.  (See References)

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E) cavernous angiomas are similar to varicose veins.

This answer is correct.


The statement, "cavernous angiomas are similar to varicose veins." is false.
cavernous angiomas have an initial presentation of focal epilepsy in 1/3 of cases, are abnormal collections of thin-walled vessels without intervening brain tissue, and are associated with a 1% annual risk of acute hemorrhage.  (See References)

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References:

1. Prayson, R.A., and Goldblum, J.R. (Eds.) (2005). Neuropathology. Elsevier, Philadelphia.
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behavior
Vascular Malformations 01
Question ID: 02230701
Question written by . (C) FrontalCortex.com 2006-2009, all rights reserved. Created: 02/23/2007
Modified: 02/23/2007
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