Entamoeba histolytica

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Related to Entameba histolytica: Giardia lamblia, Entameba coli

Ent·a·moe·ba his·to·ly't·i·ca

a species of ameba that is the only distinct pathogen of the genus, the so-called "large race" of Entamoeba histolytica, causing tropical or amebic dysentery in humans and also in dogs (humans are the reservoir for canine infections). In humans, the organism may penetrate the epithelial tissues of the colon, causing ulceration (amebic dysentery); in a small proportion of these cases, the organism may reach the liver by the portal bloodstream and produce abscesses (hepatic amebiasis); in a fraction of these cases it may then spread to other organs, such as the lungs, brain, kidney, or skin and frequently be fatal.
See also: Entamoeba dispar.

Entamoeba histolytica

Parasitology A protozoan that normally resides in the large intestine and may, under abnormal conditions, become pathogenic, enter the mucosa, producing flask-like ulcers and amebic dysentery; it may seed to other organs–eg, lungs, brain etc. Cf Entamoeba polecki.

Ent·a·moe·ba his·to·lyt·I·ca

(ent'ă-mē'bă his-tō-lit'i-kă)
Species of ameba that is the only distinct pathogen in the species; causes amebic dysentery.
References in periodicals archive ?
Tests for Entameba histolytica were negative in aspirated materials and there were no bacterial isolates.