Introduction Chilomastix mesnili is cosmopolitan in distribution although found more frequently in warm climates. It is thought to be non-pathogenic although the trophozoite has been ...

Introduction Endolimax nana is a small non-pathogenic amoeba with world wide distribution. Its life cycle is similar to that of E. histolytica but is non-invasive. Morphology of Trophozoite Trophozoites ...

Introduction Entamoeba hartmanni is a non-pathogenic amoeba with world wide distribution. Its life cycle is similar to that of E. histolytica but it does not have an invasive stage ...

Iodine stain. Left, an Entamoeba coli trophozoite. Right, this artefact is morphologically like a trophozoite, but the inside “nucleus” is actually superimposed fecal debris.    

have a single nucleus, which have a centrally placed karyosome and uniformly distributed peripheral chromatin. This typical appearance of the nucleus is not always observed as some ...

Trophozoite of E. histolytica/E. dispar in a direct wet mount stained with iodine.