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      • 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. The core of the trophozoite is slightly oval in shape with a nucleus surrounded by a thick membrane.
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  2. Nov 14, 2021 · Trophozoites in the colon multiply by undergoing binary fission and slowly reduce in size to first transform into the pre-cyst phase and then to the cyst phase. These cysts undergo mitosis until it becomes octonucleated or occasionally developing 16 nuclei. Host feces release mature octonucleate cysts of Entamoeba coli. Trophozoites found in the stool outside the body are rapidly destroyed, and if ingested, would not survive exposure to the gastric environment.

  3. Entamoeba coli – Trophozoite. February 13, 2021. Common non-pathogenic commensal of human; Habitat in human: Large intestines; ... Entamoeba histolytica – Cyst.

  4. E. coli trophozoites can be distinguished by their wide and tapered pseudopodia. They are often mistaken for E. histolytica due to their overlap in size. The cysts are distinguished by noticing the eight nuclei found in the mature form. To diagnosis for E. coli, a stool sample is usually tested.

  5. Entamoeba coli has a worldwide distribution and is one of the most commonly reported Entamoeba species in clinical specimens. Non-human primates may serve as reservoir hosts. Trophozoites of E. coli measure 15–50 μm and have a single nucleus with irregular peripheral chromatin and a usually eccentric karyosome.

  6. Trophozoites of Entamoeba coli usually measure 15–50 µm. The trophozoites have 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).

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