Strongyloidiasis other diagnostic studies: Difference between revisions
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==Overview== | ==Overview== | ||
Upper and lower [[Endoscopy|GI endoscopy]], [[skin biopsy]], and [[Bronchoalveolar lavage|BAL]] fluid examination are some other diagnostic tests that are employed in diagnosing strongyloidiasis when there is a negative stool exam. | |||
==Other diagnostic tests== | ==Other diagnostic tests== | ||
Upper and lower [[Endoscopy|GI endoscopy]], [[skin biopsy]], and [[Bronchoalveolar lavage|BAL]] fluid examination are some other diagnostic tests that are employed in diagnosing strongyloidiasis when there is a negative stool exam.<ref name="pmid21509240">{{cite journal |vauthors=Al-Sajee DM, Al-Hamdani A |title=A case of gastric and duodenal strongyloidiasis |journal=Sultan Qaboos Univ Med J |volume=10 |issue=2 |pages=262–5 |year=2010 |pmid=21509240 |pmc=3074720 |doi= |url=}}</ref><ref name="pmid17940124">{{cite journal |vauthors=Segarra-Newnham M |title=Manifestations, diagnosis, and treatment of Strongyloides stercoralis infection |journal=Ann Pharmacother |volume=41 |issue=12 |pages=1992–2001 |year=2007 |pmid=17940124 |doi=10.1345/aph.1K302 |url=}}</ref> | |||
{| class="wikitable" | {| class="wikitable" | ||
!Test | !Test | ||
!Findings | !Findings | ||
|- | |- | ||
|Upper GI endoscopy | |Upper GI [[endoscopy]] | ||
| | | | ||
* Typically found in the proximal part of the small intestine | * Typically worms are found in the proximal part of the [[small intestine]] | ||
* Edematous and erythematous mucosa with larva on biopsy | * Edematous and [[erythematous]] [[mucosa]] with larva on biopsy | ||
|- | |- | ||
|BAL/ Sputum examination | |[[BAL]]/ Sputum examination | ||
| | | | ||
* | *Larvae can be detected by simple wet-mount in fluid collected by [[BAL]] | ||
|- | |- | ||
|Skin biopsy | |[[Skin biopsy]] | ||
| | | | ||
* Obtain specimens from the purpuric eruptions | * Obtain specimens from the [[purpuric]] eruptions | ||
* Edema, extravasated red blood cells (RBCs), and some lymphocytes in the superficial dermis. | * [[Edema]], extravasated [[red blood cells]] (RBCs), and some [[lymphocytes]] in the superficial [[dermis]]. | ||
* The larvae range in size from 9 to 15 µm. | * The larvae range in size from 9 to 15 µm. | ||
|- | |- | ||
|CSF (CNS involvement) | |[[CSF]] ([[CNS]] involvement) | ||
| | | | ||
* Findings similar to bacterial meningitis | * Findings similar to [[Bacterial meningitis MRI|bacterial meningitis]] | ||
* Negative | * Negative [[gram stain]] | ||
* A wet mount preparation may reveal ''S stercoralis'' larvae. | * A wet mount preparation may reveal ''S stercoralis'' larvae. | ||
|- | |||
|Duodenal aspiration | |||
| | |||
*[[Duodenal]] aspirate is more sensitive than [[stool examination]], and [[duodenal]] [[biopsy]] may reveal [[parasites]] in the [[gastric]] crypts, in the [[duodenal]] glands, or [[eosinophilic]] infiltration in the [[lamina propria]]. | |||
*The [[duodenal]] fluid can be examined using techniques such as the Enterotest string or [[duodenal]] aspiration. | |||
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[[Category:Infectious disease]] | [[Category:Infectious disease]] | ||
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Latest revision as of 00:19, 30 July 2020
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] ; Associate Editor(s)-in-Chief: Aditya Ganti M.B.B.S. [2]
Overview
Upper and lower GI endoscopy, skin biopsy, and BAL fluid examination are some other diagnostic tests that are employed in diagnosing strongyloidiasis when there is a negative stool exam.
Other diagnostic tests
Upper and lower GI endoscopy, skin biopsy, and BAL fluid examination are some other diagnostic tests that are employed in diagnosing strongyloidiasis when there is a negative stool exam.[1][2]
| Test | Findings |
|---|---|
| Upper GI endoscopy |
|
| BAL/ Sputum examination |
|
| Skin biopsy |
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| CSF (CNS involvement) |
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| Duodenal aspiration |
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References
- ↑ Al-Sajee DM, Al-Hamdani A (2010). "A case of gastric and duodenal strongyloidiasis". Sultan Qaboos Univ Med J. 10 (2): 262–5. PMC 3074720. PMID 21509240.
- ↑ Segarra-Newnham M (2007). "Manifestations, diagnosis, and treatment of Strongyloides stercoralis infection". Ann Pharmacother. 41 (12): 1992–2001. doi:10.1345/aph.1K302. PMID 17940124.