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Diagn Interv Radiol. 2011 Jun;17(2):163-5. doi: 10.4261/1305-3825.DIR.2933-09.1. Epub 2010 Feb 18.

Subcutaneous hydatid cyst in the popliteal fossa at the site of a previous wasp sting.

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  • 1Department of Radiology, Medical University of Pécs, Pécs, Hungary. istvan.battyany@aok.pte.hu

Abstract

We report an uncommon case of a primary Echinococcus cyst that developed in the subcutaneous tissue of the right popliteal fossa, at the spot of a previous wasp sting, suggesting the possibility of an unusual transmission of the eggs by insects. This unusual presentation was initially considered as a Baker cyst until parasytological results verified Echinococcus hydatidosus, the larval form of Echinococcus granulosus, as diagnosis. However, the most common path of Echinococcus granulosus infection is through contact with a definitive host or by ingestion of ova through contaminated water or food. Transmission by insects should also be reconsidered in endemic areas.

PMID:
20180181
[PubMed - indexed for MEDLINE]
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