Taxonomy: f. Entamoebidae
Animal: Entamoeba histolytica 3 12.jpg
Sites: Gut
Entamoeba histolytica trophozoite containing ingested red cells which is diagnostic. Trophozoite is 12 - 60 microns (invasive forms greater than 20). Single nucleus with fine peripheral chromatin and small compact karyosome in section stained with H & E.

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