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Vascular Malformations 04

Topic: Pathology

Created on Wednesday, November 28 2007 by jdmiles

Last modified on Wednesday, November 28 2007.

Which of the following statements about the type of lesion seen in this photomicrograph is most accurate?


 
        A) Patients with this type of lesion have an initial presentation of focal epilepsy in 1/3 of cases
 
        B) Patients with lesions of this kind have an initial presentation of cerebral hemorrhage in 50% of cases
 
        C) Lesions of this type are dilated veins of the superficial or subcortical vasculature
 
        D) Lesions of this type are abnormal collections of thin-walled vessels without intervening brain tissue
 
        E) Lesions of this type rarely become symptomatic
 

 


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This question was created on November 28, 2007 by jdmiles.
This question was last modified on November 28, 2007.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANSWERS AND EXPLANATIONS




A) patients with this type of lesion have an initial presentation of focal epilepsy in 1/3 of cases

This answer is incorrect.


The photomicrograph shows a capillary telangiectasia. Capillary telangiectases are dilated capillaries, separated by normal brain tissue. They are usually incidental findings, and rarely become symptomatic. They have an estimated prevalence of 4 per 1000, comprising 16% to 20% of all brain vascular malformations.  (See References)

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B) patients with lesions of this kind have an initial presentation of cerebral hemorrhage in 50% of cases

This answer is incorrect.


The photomicrograph shows a capillary telangiectasia. Capillary telangiectases are dilated capillaries, separated by normal brain tissue. They are usually incidental findings, and rarely become symptomatic. They have an estimated prevalence of 4 per 1000, comprising 16% to 20% of all brain vascular malformations.  (See References)

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C) lesions of this type are dilated veins of the superficial or subcortical vasculature

This answer is incorrect.


The photomicrograph shows a capillary telangiectasia. Capillary telangiectases are dilated capillaries, separated by normal brain tissue. They are usually incidental findings, and rarely become symptomatic. They have an estimated prevalence of 4 per 1000, comprising 16% to 20% of all brain vascular malformations.  (See References)

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D) lesions of this type are abnormal collections of thin-walled vessels without intervening brain tissue

This answer is incorrect.


The photomicrograph shows a capillary telangiectasia. Capillary telangiectases are dilated capillaries, separated by normal brain tissue. They are usually incidental findings, and rarely become symptomatic. They have an estimated prevalence of 4 per 1000, comprising 16% to 20% of all brain vascular malformations.  (See References)

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E) lesions of this type rarely become symptomatic

This answer is correct.


The photomicrograph shows a capillary telangiectasia. Capillary telangiectases are dilated capillaries, separated by normal brain tissue. They are usually incidental findings, and rarely become symptomatic. They have an estimated prevalence of 4 per 1000, comprising 16% to 20% of all brain vascular malformations.  (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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pathology
Vascular Malformations 04
Question ID: 11280703
Question written by J. Douglas Miles, (C) 2006-2009, all rights reserved.
Created: 11/28/2007
Modified: 11/28/2007
Estimated Permutations: 237600

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