- "Balantidium coli
trophozoites. These are characterized by:
- their large size (40 µm
to more than 70 µm)
- the presence of cilia on
the cell surface - particularly visible
in (B)
- a cytostome (arrows)
- a bean shaped macronucleus
which is often visible - see (A),
and a smaller, less conspicuous
micronucleus"
- courtesy of the Division of
Parasitic Diseases at the National Center for
Infectious Diseases, Centers for Disease Control
& Prevention
- http://www.dpd.cdc.gov/DPDx/HTML/Balantidiasis.htm
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