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Entamoeba coli, E. hartmanni, E. polecki, Endolimax nana, and Iodamoeba buetschlii are generally considered nonpathogenic and reside in the lumen of the large intestine in the human host. Both cysts and trophozoites of these species are passed in stool and are considered diagnostic .
- Amebiasis
Cysts and trophozoites are passed in feces . Cysts are...
- Diagnostic Procedures
Blood Specimens Malaria. Preparation of blood smears [PDF,...
- Biology
Entamoeba coli, E. hartmanni, E. polecki, Endolimax nana,...
- Amebiasis
Aug 23, 2023 · Entamoeba coli, similar to other Entamoeba specifies, has three distinct morphological forms: trophozoite, pre-cystic stage, and cystic stage. The trophozoite form, which measures 20 to 25 μm, is minimally mobile. [23]
- Akhlema Haidar, Orlando De Jesus
- 2023/02/12
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Usually, the amoeba is immobile, and keeps its round shape. This amoeba, in its trophozoite stage, is only visible in fresh, unfixed stool specimens. Sometimes the Entamoeba coli have parasites as well. One is the fungus Sphaerita spp. This fungus lives in the cytoplasm of the E. coli.
- E. coli
- Entamoeba
Trophozoites of Entamoeba coli usually measure 15 to 50 µm. The trophozoites possess a single nucleus with a characteristically large, eccentric karyosome and coarse, irregular peripheral chromatin. The cytoplasm is usually coarsely granular and vacuolated (often described as "dirty" cytoplasm).
This photomicrograph of a trichrome-stained specimen, revealed the presence of an Entamoeba coli trophozoite, which contained a characteristically large, single nucleus with its peripherally dispersed chromatin, and eccentric karyosome. Also note the amoeba’s dirty, granulated cytoplasm.
