Amoebiasis classification

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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 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.

Classification

Classification Based on Responsible Organism

• E. histolytica

Responsible for the majority of amoebiasis cases

May casuse either luminal or extraluminal infection)

• E. dispar

Responsible for a small proportion of amoebiasis cases

Only causes luminal infection)

Classification Based on Invasion

• Luminal amoebiasis (infection localized to the intestines)
• Extraluminal amoebiasis (infection spreads beyond the intestines to distant organs)