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Acta Parasitologica

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Volume 63, Issue 3


Dirofilaria repens infection as a cause of intensive peripheral microfilariemia in a Polish patient: process description and cases review

Matylda Kłudkowska
  • Corresponding author
  • Poznań University of Medical Sciences, Department and Clinic of Tropical and Parasitic Diseases, Poznań, Poland
  • H. Święcicki University Hospital, Central Laboratory of Microbiology, Division of Parasitology, Poznań, Poland
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  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Łukasz Pielok
  • Poznań University of Medical Sciences, Department and Clinic of Tropical and Parasitic Diseases, Poznań, Poland
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Krystyna Frąckowiak
  • H. Święcicki University Hospital, Central Laboratory of Microbiology, Division of Parasitology, Poznań, Poland
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Aleksander Masny
  • National Institute of Public Health - National Institute of Hygiene, Department of Influenza Research, National Influenza Center, Warsaw, Poland
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  • De Gruyter OnlineGoogle Scholar
/ Elżbieta Gołąb
  • National Institute of Public Health - National Institute of Hygiene, Department of Medical Parasitology, Warsaw, Poland
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Małgorzata Paul
  • Poznań University of Medical Sciences, Department and Clinic of Tropical and Parasitic Diseases, Poznań, Poland
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
Published Online: 2018-07-04 | DOI: https://doi.org/10.1515/ap-2018-0077


Dirofilariasis is a parasitic disease of dogs and other carnivores transmitted mainly by the mosquitoes of the genera Culex, Aedes, Anopheles. Full life cycle of the Dirofilaria nematodes in humans is extremely rarely observed, usually lacking species determination at the molecular level. We report fully documented unusual clinical manifestation of subcutaneous dirofilariasis with intensive microfilariemia in peripheral blood revealed by the Knott’s concentration technique. The identification of the Dirofilaria repens nematode was based on typical morphological findings for adult gravid female nematode found in the histopathological preparations. The morphology of microfilariae obtained from patient’s peripheral blood was also typical for D. repens. The final identification was confirmed by the molecular analysis of microfilariae collected from the blood.

Keywords: Dirofilaria repens; Dirofilaria spp.; human dirofilariasis; subcutaneous nodule; microfilaria; microfilariemia; eosinophilia; autochthonous infection


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About the article

Received: 2017-12-22

Revised: 2018-03-05

Accepted: 2018-04-06

Published Online: 2018-07-04

Published in Print: 2018-09-25

Citation Information: Acta Parasitologica, Volume 63, Issue 3, Pages 657–663, ISSN (Online) 1896-1851, ISSN (Print) 1230-2821, DOI: https://doi.org/10.1515/ap-2018-0077.

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