IPLab:Lab 11:Cysticercosis: Difference between revisions

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== Clinical Summary ==
== Clinical Summary ==
This 29-year-old woman was admitted to the hospital because of repeated tonic-clonic seizures. The patient was a tour guide leading groups of tourist to Tibet for two-month walking/camping tours in the Himalayas. Her seizures were easily controlled by intravenous administration of phenytoin. The WBC count was 13,000, with 5% eosinophils; the erythrocyte sedimentation rate was 19. A cranial CT performed with and without contrast revealed two ring-enhancing lesions. The patient underwent a craniotomy and excisional biopsy.
This 29-year-old woman was admitted to the hospital because of repeated tonic-clonic seizures. The patient was a tour guide leading groups of tourist to Tibet for two-month walking/camping tours in the Himalayas. Her seizures were easily controlled by intravenous administration of phenytoin. The WBC count was 13,000, with 5% eosinophils and the erythrocyte sedimentation rate was slightly elevated. A cranial CT performed with and without contrast revealed two ring-enhancing lesions. The patient underwent a craniotomy and excisional biopsy.


 
Histopathologic exam of the surgical specimen revealed a capsule of dense connective tissue surrounding a cavity that contained a partially degenerated scolex of Taenia solium.
== Surgical Specimen ==
Histopathologic exam revealed a capsule of dense connective tissue surrounding a cavity that contained a partially degenerated scolex of Taenia solium.  


== Images ==
== Images ==
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== Study Questions ==
== Study Questions ==
* <spoiler text="How did this patient get this parasite?">Cysticercosis is caused by the cestode parasite, Taenia solium (pig tapeworm). Cysticercosis is contracted by ingesting eggs from the feces of a person infected with an adult Taenia solium. The eggs can survive for several weeks in soil but are also infectious as soon as passed. The larvae migrate through the intestinal wall and are disseminated via the blood stream and can encyst in the brain, heart, skeletal muscle, or skin.</spoiler>
* <spoiler text="How did this patient get this parasite?">Cysticercosis is caused by the cestode parasite, Taenia solium (pig tapeworm). Cysticercosis is contracted by ingesting eggs from the feces of a person infected with an adult Taenia solium. The eggs can survive for several weeks in soil but are also infectious as soon as passed. The larvae migrate through the intestinal wall and are disseminated via the blood stream and can encyst in the brain, heart, skeletal muscle, or skin.</spoiler>
== Additional Resources ==
=== Reference ===
* [http://emedicine.medscape.com/article/215589-overview eMedicine Medical Library: Cysticercosis]
* [http://emedicine.medscape.com/article/781845-overview eMedicine Medical Library: Cysticercosis in Emergency Medicine]
* [http://www.merckmanuals.com/professional/infectious_diseases/cestodes_tapeworms/taeniasis_solium_and_cysticercosis.html Merck Manual: Taeniasis Solium and Cysticercosis]
=== Journal Articles ===
* Garcia HH, Del Brutto OH.  [http://www.ncbi.nlm.nih.gov/pubmed/10738675 Taenia solium cysticercosis].  ''Infect Dis Clin North Am'' 2000 Mar;14(1):97-119, ix.
=== Images ===
* [{{SERVER}}/library/index.php?/tags/1622-cysticercosis PEIR Digital Library: Cysticercosis Images]


{{IPLab 11}}
{{IPLab 11}}


[[Category: IPLab:Lab 11]]
[[Category: IPLab:Lab 11]]

Latest revision as of 17:03, 9 July 2020

Clinical Summary

This 29-year-old woman was admitted to the hospital because of repeated tonic-clonic seizures. The patient was a tour guide leading groups of tourist to Tibet for two-month walking/camping tours in the Himalayas. Her seizures were easily controlled by intravenous administration of phenytoin. The WBC count was 13,000, with 5% eosinophils and the erythrocyte sedimentation rate was slightly elevated. A cranial CT performed with and without contrast revealed two ring-enhancing lesions. The patient underwent a craniotomy and excisional biopsy.

Histopathologic exam of the surgical specimen revealed a capsule of dense connective tissue surrounding a cavity that contained a partially degenerated scolex of Taenia solium.

Images

  • This is a head CT showing the two cysts (arrows).
    This is a head CT showing the two cysts (arrows).
  • This is a photograph of the cyst that was surgically removed. The cyst is filled with a clear fluid and contains a scolex.
    This is a photograph of the cyst that was surgically removed. The cyst is filled with a clear fluid and contains a scolex.
  • This photograph of an autopsy specimen from another patient shows an adult tapeworm in the intestine. Note that the worm attaches to the luminal surface of the intestine via the scolex.
    This photograph of an autopsy specimen from another patient shows an adult tapeworm in the intestine. Note that the worm attaches to the luminal surface of the intestine via the scolex.
  • This is a photograph of the body of an adult tapeworm. Note the body segments.
    This is a photograph of the body of an adult tapeworm. Note the body segments.

Study Questions

Additional Resources

Reference

Journal Articles

Images

Lab 11: Parasitic Diseases

A tonic-clonic seizure involves loss of consciousness followed by tonic, then clonic, convulsions.

A normal white blood cell count is 4000-11,000 cells/mm³.

An elevated erythrocyte sedimentation rate is a non-specific indicator of inflammation.

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