Cysticercosis causes: Difference between revisions
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*The cause of human cysticercosis is the larval form of ''[[Taenia solium]]'' (pork tapeworm). ''T. solium'' is a member of Phylum [[Platyhelminthes]], class Cestoda, Order [[Cyclophyllidea]] and family [[Taeniidae]]. The common larval stage of ''T. solium'' was also known as [[Cysticercus cellulosae]].T. solium worms may reach a length of several meters. The scolex has four suckers, and a double crown of prominent hooks, which attach to the intestinal mucosa.''T. solium'' eggs are spherical and 30 to 40 µm in diameter.<ref name="three">Davis, LE. “Neurocysticercosis” Emerging Neurological Infections edited by Power, C and Johnson RT. Taylor & Francis Group, 2005. 261-287.</ref> The cysticercus larva completes development in about 2 months. It is semitransparent, opalescent white, and elongate oval in shape and may reach a length of 0.6 to 1.8 cm. | *The cause of human cysticercosis is the larval form of ''[[Taenia solium]]'' (pork tapeworm). ''T. solium'' is a member of Phylum [[Platyhelminthes]], class Cestoda, Order [[Cyclophyllidea]] and family [[Taeniidae]]. The common larval stage of ''T. solium'' was also known as [[Cysticercus cellulosae]].T. solium worms may reach a length of several meters. The scolex has four suckers, and a double crown of prominent hooks, which attach to the intestinal mucosa.''T. solium'' eggs are spherical and 30 to 40 µm in diameter.<ref name="three">Davis, LE. “Neurocysticercosis” Emerging Neurological Infections edited by Power, C and Johnson RT. Taylor & Francis Group, 2005. 261-287.</ref> The cysticercus larva completes development in about 2 months. It is semitransparent, opalescent white, and elongate oval in shape and may reach a length of 0.6 to 1.8 cm. | ||
* [[Taenia saginata]] tapeworms are usually 4-12 m in length, but can grow to be 25 m; the adult tapeworms produce 1,000 to 2,000 proglottids/ worm and may produce up to 100,000 eggs per worm. | * [[Taenia saginata]] tapeworms are usually 4-12 m in length, but can grow to be 25 m; the adult tapeworms produce 1,000 to 2,000 proglottids/ worm and may produce up to 100,000 eggs per worm. | ||
* | * Taenia asiatica tapeworms range in size from 4-8 m, produce 700 proglottids/worm and may produce 80,000 eggs per proglottid. | ||
==References== | ==References== | ||
Revision as of 17:12, 26 November 2012
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Overview
Causes
- The cause of human cysticercosis is the larval form of Taenia solium (pork tapeworm). T. solium is a member of Phylum Platyhelminthes, class Cestoda, Order Cyclophyllidea and family Taeniidae. The common larval stage of T. solium was also known as Cysticercus cellulosae.T. solium worms may reach a length of several meters. The scolex has four suckers, and a double crown of prominent hooks, which attach to the intestinal mucosa.T. solium eggs are spherical and 30 to 40 µm in diameter.[1] The cysticercus larva completes development in about 2 months. It is semitransparent, opalescent white, and elongate oval in shape and may reach a length of 0.6 to 1.8 cm.
- Taenia saginata tapeworms are usually 4-12 m in length, but can grow to be 25 m; the adult tapeworms produce 1,000 to 2,000 proglottids/ worm and may produce up to 100,000 eggs per worm.
- Taenia asiatica tapeworms range in size from 4-8 m, produce 700 proglottids/worm and may produce 80,000 eggs per proglottid.
References
- ↑ Davis, LE. “Neurocysticercosis” Emerging Neurological Infections edited by Power, C and Johnson RT. Taylor & Francis Group, 2005. 261-287.