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the only species of Entamoeba that causes human amebiasis; it is transmitted through ingestion of cysts in contaminated food and water. Trophozoites may invade the tissue of the large intestine and may be spread to extraintestinal sites such as the liver, spleen, brain, lungs, and pericardium.
Entamoeba histolytica trophozoite with ingested erythrocyte. Nucleus has typical small centrally located karyosome and thin, uniform, peripheral chromatin (trichrome stain).
Medical dictionary. 2011.