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- The cyst represents the nonreplicating infective stage. B coli forms a large spherical cyst that may grow to 60 µm in diameter. The cyst contains a macronucleus, a micronucleus, and a granular cytoplasm.
emedicine.medscape.com › article › 213077-workupBalantidiasis Workup: Laboratory Studies, Imaging Studies ...
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Is Balantidium coli a trophozoite or cyst?
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Is Balantidium coli surrounded by cilia?
What is ciliate balantioides coli?
Balantidium coli cysts in wet mounts. Both Balantidium coli trophozoites and cysts may be shed in stools. Both stages may occur in diarrheal stools, and usually only cysts are observed formed stools.
Balantidium coli is a parasitic species of ciliate alveolates that causes the disease balantidiasis. It is the only member of the ciliate phylum known to be pathogenic to humans.
Jan 5, 2022 · Trophozoites and cysts of B. coli are large and easily seen under optical microscopy at 10-40× magnification. Vegetative cells usually move slowly in a helical fashion; they are ovoid or pear-shaped, up to 150 μm in length, with cilia covering the entire cell surface.
- 10.1016/j.fawpar.2021.e00143
- 2022/03
Aug 25, 2023 · Balantidiasis (also known as balantidiosis) is defined as large-intestinal infection with Balantidium coli, which is a ciliated protozoan (and the largest protozoan that infects humans). B coli...
Oct 23, 2023 · Trophozoites undergo encystation to produce infective cysts. Some trophozoites invade the wall of the colon and multiply; some return to the lumen and disintegrate. Mature cysts are passed in the stool and can remain viable for up to two weeks in the environment .
Symptomatic infection is characterized either by acute onset of bloody or watery mucoid diarrhea with abdominal pain or with chronic or intermittent episodes of diarrhea, anorexia, and weight loss.
May 14, 2021 · As B. coli (formerly known as Balantidium coli) are one of your specialized areas of research, please shed some light on its current trends. Currently, the number of manuscripts with this protozoan has increased modestly, highlighting publications of book chapters and reviews.
