Amoebiasis classification: Difference between revisions

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{{CMG}} {{AE}} {{YD}}; {{SSK}}
{{CMG}} {{AE}} {{YD}}; {{SSK}}
==Overview==
==Overview==
Amoebiasis may be classified based on the responsible organism (''E. histolytica'' or ''E. dispar'') or based on the extent of invasion of the infection (luminal or extraluminal). ''E. histolytica may cause either luminal or extraluminal infection, whereas ''E. dispar'' can only causes luminal infection.
Amoebiasis may be classified based on the responsible organism (''E. histolytica'' vs. ''E. dispar'') or based on the extent of invasion of the infection (luminal [asymptomatic] vs. invasive intestinal or extraintestinal [symptomatic]). ''E. histolytica'' may cause either luminal or extraluminal infection, whereas ''E. dispar'' can only causes luminal infection.


==Classification==
==Classification==
===Classification Based on Responsible Organism===
===Classification Based on Responsible Organism===
*''E. histolytica'' (responsible for the majority of amoebiasis cases, may casuse either luminal or extraluminal infection)
*'''''E. histolytica'''''
*''E. dispar'' (responsible for a small proportion of amoebiasis cases, only causes luminal infection)
::Responsible for all symptomatic amoebiasis
::May casuse either luminal (asymptomatic) or invasive infection (symptomatic)
*'''''E. dispar'''''
::Responsible for the majority of colonization cases
::Only causes luminal infection (asymptomatic)
 
===Classification Based on Invasion===
===Classification Based on Invasion===
*Luminal amoebiasis (infection localized to the intestines)
*'''Luminal amoebiasis''': parasite localized to the intestines, patients are asymptomatic
*Extraluminal amoebiasis (infection spreads beyond the intestines to distant organs)
*'''Invasive amoebiasis''': parasite was able to damage the integrity of the intestinal wall, patients symptomatic
::*''Invasive intestinal'': parasite causes intestinal manifestations
::*''Invasive extraintestinal'': parasite spreads to distant organs and causes extraintestinal manifestations
 
==References==
==References==
{{Reflist|2}}
{{Reflist|2}}

Latest revision as of 21:45, 11 March 2016

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Yazan Daaboul, M.D.; Serge Korjian M.D.

Overview

Amoebiasis may be classified based on the responsible organism (E. histolytica vs. E. dispar) or based on the extent of invasion of the infection (luminal [asymptomatic] vs. invasive intestinal or extraintestinal [symptomatic]). E. histolytica may cause either luminal or extraluminal infection, whereas E. dispar can only causes luminal infection.

Classification

Classification Based on Responsible Organism

  • E. histolytica
Responsible for all symptomatic amoebiasis
May casuse either luminal (asymptomatic) or invasive infection (symptomatic)
  • E. dispar
Responsible for the majority of colonization cases
Only causes luminal infection (asymptomatic)

Classification Based on Invasion

  • Luminal amoebiasis: parasite localized to the intestines, patients are asymptomatic
  • Invasive amoebiasis: parasite was able to damage the integrity of the intestinal wall, patients symptomatic
  • Invasive intestinal: parasite causes intestinal manifestations
  • Invasive extraintestinal: parasite spreads to distant organs and causes extraintestinal manifestations

References