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

Department of Radiology, Medical University of Pécs, Pécs, Hungary.
Diagnostic and interventional radiology (Ankara, Turkey) (Impact Factor: 1.43). 02/2010; 17(2):163-5. DOI: 10.4261/1305-3825.DIR.2933-09.1
Source: PubMed


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.

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    • "This was the 11th U.S case in about 50 reported worldwide (Wilson and others 2001). Battyany and others (2011) described a case of Hydatid cyst following a wasp sting, opening the question of potential transmission through this kind of vector, mainly in endemic areas. No other studies have focused on this topic. "
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    ABSTRACT: ?Increasing world population worsens the serious problem of food security in developing countries. On the other hand in industrialized countries, where the problem of food security is of minor concern, health problems related to food refer to 2 main factors: food safety and environmental sustainability of food production. For these reasons, new ways must be found to increase yields while preserving food quality, natural habitats, and biodiversity. Insects could be of great interest as a possible solution due to their capability to satisfy 2 different requirements: (i) they are an important source of protein and other nutrients; (ii) their use as food has ecological advantages over conventional meat and, in the long run, economic benefits. However, little is known on the food safety side and this can be of critical importance to meet society's approval, especially if people are not accustomed to eating insects. This paper aims to collect information in order to evaluate how insects could be safely used as food and to discuss nutritional data to justify why insect food sources can no longer be neglected. Legislative issues will also be discussed.
    05/2013; 12(3):296-313. DOI:10.1111/1541-4337.12014
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    • "Negative 4x5 Primary Retroperitoneal ? Positive 15x15 Battyany I et al 2011 [6] "
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    ABSTRACT: Objective: Hydatic cyst is a parasitic disease caused by the larvae of Echinococcus granulosus. In the study, the aim is to evaluate the relation between serology and grow-up time in atypically localized cysts. Methods: Retrospectively, all the patients with hydatic disease between December 2004 and May 2012 were screened from the hospital database. Hydatic cyst localization other than the liver and lungs were accepted as atypical localization. Results: There were 325 patients with a diagnosis of hydatic disease. Most common localizations of the cysts were the liver (72.8%) and lungs (21%). Atypically localized cyst rate was 6.4% (n: 21). The most common atypical localization was the spleen (2.4%). 80.9% of atypically localized cysts were primary cases. In 3 cases with primary intramuscular hydatic cyst and 2 cases with primary subcutaneous hydatic cysts, serology was negative. Conclusion: The relation between the hydatid cyst and the host is the main factor in serological tests and grow-up time. In tissues with a weaker cellular immunity like muscle and subcutaneous tissue, serology tends to be negative and grow-up time to be faster. In atypically localized cysts,hematogenous dissemination cannot explain the pathogenesis fully. Therefore, lymphatic dissemination should be kept in mind.
    Turkiye parazitolojii dergisi / Turkiye Parazitoloji Dernegi = Acta parasitologica Turcica / Turkish Society for Parasitology 01/2013; 37(4):257-261. DOI:10.5152/tpd.2013.3056
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    • "Rare cases of subcutaneous E. multilocularis (Tschudi and Ammann, 1988) or T. crassiceps (Heldwein et al., 2006) infections were observed in patients with preceding injuries at the infection sites. One patient presented a subcutaneous E. granulosus cyst in the popliteal fossa at the site of a previous wasp sting (Battyany et al., 2010). 2.3. "
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    ABSTRACT: The close emotional tie between people and companion animals is a beneficial relation known as the human-animal bond. However, pet dogs and cats can play an important role in the transmission of helminthic zoonotic agents such as the tapeworms Echinococcus and the roundworms Toxocara which are directly transmitted from pets to the human environment without the involvement of vectors or intermediate hosts. In humans, echinococcosis has emerged in Europe and toxocarosis is still persisting in large endemic areas despite the availability of highly efficient anthelminthics for dogs and cats. Ecological changes significantly contributed to these trends: the high wild fox populations and the high density of freely roaming dogs and cats maintain a permanent infection pressure of these and other parasites. Further, the establishment of urban recreational environments closer to natural ecological systems boosted vole populations that represent urban reservoirs for zoonotic helminths. A good understanding of the parasites' biology and epidemiology including the transmission to humans is required for planning and implementing effective prevention strategies. The continuous education of veterinarians and the information of the pet owners by providing uniform recommendations are of priority importance. A close collaboration between veterinary and public health professionals in a 'One Health' concept is required.
    Veterinary Parasitology 07/2011; 182(1):41-53. DOI:10.1016/j.vetpar.2011.07.014 · 2.46 Impact Factor
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