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Infections 13

Topic: Imaging

Created on Monday, February 25 2013 by gliageek

Last modified on Wednesday, February 27 2013.

The infectious process demonstrated within the photomicrograph is characteristic of which of the following class of organisms?

 
        A) Protozoal
 
        B) Fungal
 
        C) Prion
 
        D) Viral
 
        E) Bacterial
 

 


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This question was created on February 25, 2013 by gliageek.
This question was last modified on February 27, 2013.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANSWERS AND EXPLANATIONS




A) Protozoal

This answer is correct.


Protozoal infections are characterized by visible trophozoites, and sometimes protozoal cysts or pseudocysts. The size of the protozoal organisms within this section are consistent with Acanthameba infection.   (See References)

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B) Fungal

This answer is incorrect.


Fungal infections result either in fungal meningitis, cerebritis with multiple microabscesses, or multifocal infarction with visible hyphal organisms.   (See References)

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C) Prion

This answer is incorrect.


Infections secondary to prion diseases are not accompanied by an inflammatory infiltrate.   (See References)

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D) Viral

This answer is incorrect.


Viral encephalitides are accompanied by lymphocytic infiltrates and microglial nodules.   (See References)

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E) Bacterial

This answer is incorrect.


Bacterial infections incite an acute inflammatory response, characterized by abundant neutrophils.   (See References)

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References:

1. Visvesvara, G.S., Moura, H., and Schuster, F.L. (2007). "Pathogenic and opportunistic free-living amoebae: Acanthamoeba spp., Balamuthia mandrillaris, Naegleria fowleri, and Sappinia diploidea." FEMS Immunol Med Microbiol, 50(1) 1-26. (PMID:17428307)
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imaging
Infections 13
Question ID: 022513106
Question written by gliageek. (C) FrontalCortex.com 2006-2009, all rights reserved. Created: 02/25/2013
Modified: 02/27/2013
Estimated Permutations: 120

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