Acta Parasitologica

, Volume 58, Issue 3, pp 384–388 | Cite as

Onchocerca lupi infection in Turkey: A unique case of a rare human parasite

  • Hatice Deniz Ilhan
  • Aylin Yaman
  • Yasuyuki Morishima
  • Hiromu Sugiyama
  • Maki Muto
  • Hiroshi Yamasaki
  • Hideo Hasegawa
  • Banu Lebe
  • Meltem Soylev Bajin
Original Paper

Abstract

Onchocerpa lupi was first isolated from a wolf in Russia. Since then, canine ocular onchocercosis has been increasingly reported, particularly in Europe and the United States. It is thought that blackflies and midges are the vectors of transmission, and it is possible that these vectors could transmit the parasite to humans. The first human case of O. lupi in Turkey was reported in 2011. In this report we present the third human case of O. lupi infection in Turkey. Our patient was a 28-year-old male who displayed a painless, immobile mass under the conjunctiva. The mass measured 10 × 12 mm in size. Pathological examination of the surgically excised tissue was suggestive of infection by a filarial nematode. Subsequently, the parasite was identified as O. lupi through molecular analysis. All of the previously reported cases of O. lupi in both humans and dogs were more symptomatic than in our patient, Onchocerca infection should not be ruled out during the differential diagnosis of the subconjunctival and orbital cystic mass in instances where there is little to no inflammation. It is important to consider biopsy and carry out molecular analysis to identify the parasite.

Keywords

Onchocerca lupi orbita Turkey zoonotic infestation 

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Copyright information

© Versita Warsaw and Springer-Verlag Wien 2013

Authors and Affiliations

  • Hatice Deniz Ilhan
    • 1
  • Aylin Yaman
    • 2
  • Yasuyuki Morishima
    • 3
  • Hiromu Sugiyama
    • 3
  • Maki Muto
    • 3
  • Hiroshi Yamasaki
    • 3
  • Hideo Hasegawa
    • 4
  • Banu Lebe
    • 5
  • Meltem Soylev Bajin
    • 2
  1. 1.Department of OphthalmologyAkdeniz UniversityAntalyaTurkey
  2. 2.Department of OphthalmologyDokuz Eylul UniversityIzmirTurkey
  3. 3.Department of ParasitologyNational Institute of Infectious DiseasesTokyoJapan
  4. 4.Department of BiologyOita UniversityOitaJapan
  5. 5.Department of PathologyDokuz Eylul UniversityIzmirTurkey

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