Blastocystis hominis 8 09.jpg

Taxonomy: Class Blastocystea
Animal: Blastocystis hominis 8 09.jpg
Sites: Gut
Comment:
Blastocystis hominis cysts. Cysts arise from the multivacuolar forms in the colon, is about 5 microns wide, usually one nucleus, thick cyst wall and very small vacuoles. This may be the transmissible stage but this has not been proven (Trichrome stain of faecal preparation). see EM of cysts in slides 8 02, 8 04 8 05. (Compare the appearance of these more usually encountered cysts with those of the abnormal cysts in a patient present with severe gastrointestinal symptoms - 6 15 - 6 26)

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