Granuloma formation by Schistosoma spp.
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Schistosomes, or blood flukes reside
in the venules of organs: ·
Schistosoma mansoni: venules of
large intestine ·
Schistosoma japonicum: venules of
small intestine ·
Schistosoma haematobium: venules of
urinary bladder. |
Schistosoma
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Eggs of Schistosoma |
Schistosoma mansoni: Note
lateral spine |
Schistosoma haematobium: Note
terminal spine |
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How do ova, formed in the venules of
an organ, make it to the lumen of
that organ to be passed out? By the
formation of a granuloma. From: http://img.medscape.com/pi/emed/ckb/pediatrics_general/996090-999469-517.jpg
Caption: Media file 10: Granuloma within the
intestinal mucosa secondary to Schistosoma
mansoni infestation. |
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Granulomas forming in the liver are a
dead end. From: http://www.path.cam.ac.uk/~schisto/schistosoma/liver_granuloma.png
Caption: Schistosome Egg Granuloma in Human
Liver |
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