Taenia saginata: Difference between revisions

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==Background==
==Background==
* also known as the beef tapeworm
[[File:Taenia saginata adult 5260 lores.jpg|thumb|Taenia saginata.]]
* humans are the only known definitive host, cattle are intermediate hosts
*Also known as the beef tapeworm
*Humans are the only known definitive host, cattle are intermediate hosts


==Transmission==
===Transmission===
* transmitted by ingesting undercooked beef containing the tapeworm larvae
*Transmitted by ingesting undercooked beef containing the tapeworm larvae
* larvae mature in the human intestines and the mature tapeworm attaches to the intestinal walls to ingest nutrients from the host
*Larvae mature in the human intestines and the mature tapeworm attaches to the intestinal walls to ingest nutrients from the host
* mature tapeworms release gravid proglottids in the stool which release eggs into the stool, which can remain active in sewage for several weeks
*Mature tapeworms release gravid proglottids in the stool which release eggs into the stool, which can remain active in sewage for several weeks


==Signs and Symptoms==
==Clinical Features==
* symptoms include diarrhea, constipation, flatulence, hunger pain, weight loss, and appendicitis, as well as discomfort of the proglottids crawling out of the anus
*Often asymptommatic
* symptoms are more severe in those with immature or compromised immune systems
''Symptoms are more severe in those with immature or compromised immune systems''


==Treatment==
*[[Diarrhea]]
* praziquantel, single dose of 5-10 mg/kg (2)
*[[Constipation]]
* niclosamide outside the U.S. (single dose of 2 gm or 50 mg/kg for pediatrics) (2)
*Flatulence
*Hunger pain
*Weight loss
*Anal discomfort


==Differential Diagnosis==
{{Helminth Types}}
==Evaluation==
*Stool studies to detect ova and proglottids
*CBC may show [[eosinophilia]]
*[[head CT|CT]]/[[brain MRI|MRI]]/[[LP]] if concern for [[neurocysticercosis]]
==Management==
*[[Praziquantel]] - single dose of 5-10mg/kg
*[[Albendazole]]
*May give both albendazole and praziquantel for severe infections
==Disposition==




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==References==
==References==
*1. Stanford University (n.d.). Taenia saginata. Retrieved from http://web.stanford.edu/group/parasites/ParaSites2001/taeniasis/saginata3.html
<references/>
*2. Pearson RD. Merck Manual. ''Taenia Saginata infection'' Retrieved from http://www.merckmanuals.com/professional/infectious-diseases/cestodes-(tapeworms)/taenia-saginata-(beef-tapeworm)-infection
 
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Latest revision as of 20:07, 28 September 2022

Background

Taenia saginata.
  • Also known as the beef tapeworm
  • Humans are the only known definitive host, cattle are intermediate hosts

Transmission

  • Transmitted by ingesting undercooked beef containing the tapeworm larvae
  • Larvae mature in the human intestines and the mature tapeworm attaches to the intestinal walls to ingest nutrients from the host
  • Mature tapeworms release gravid proglottids in the stool which release eggs into the stool, which can remain active in sewage for several weeks

Clinical Features

  • Often asymptommatic

Symptoms are more severe in those with immature or compromised immune systems

Differential Diagnosis

Helminth infections

Cestodes (Tapeworms)

Trematodes (Flukes)

Nematodes (Roundworms)

Evaluation

Management

  • Praziquantel - single dose of 5-10mg/kg
  • Albendazole
  • May give both albendazole and praziquantel for severe infections

Disposition

See Also

References

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