Subconjunctival nodule due to Setaria equina erratic migration in a horse: First case report.
Setaria equina
eosinophilic nodule
horse
subconjunctival mass
Journal
Veterinary ophthalmology
ISSN: 1463-5224
Titre abrégé: Vet Ophthalmol
Pays: England
ID NLM: 100887377
Informations de publication
Date de publication:
Nov 2019
Nov 2019
Historique:
received:
06
03
2019
revised:
08
04
2019
accepted:
12
04
2019
pubmed:
3
5
2019
medline:
2
4
2020
entrez:
3
5
2019
Statut:
ppublish
Résumé
An 18-month-old Arabian-English filly resident in southwest France was referred for evaluation of a conjunctival mass in the right eye (OD). A pink, solid, and mobile nodular formation, measuring approximately 1.2 × 0.8 cm was found under the superior nasal bulbar conjunctiva during an ophthalmic examination that was otherwise normal. The mass was surgically removed using a standing procedure. Cytological examination of fine-needle aspirates from the mass revealed a mixed eosinophilic-lymphocytic inflammation. Histological examination confirmed the dense and diffuse eosinophilic-lymphocytic infiltrate of the mass, and it revealed several cross sections of a parasitic nematode. The morphometric diagnosis identified an immature form of a filarial worm, and molecular analysis of the mitochondrial cytochrome c oxydase subunit 1 (cox1) and 12S rRNA gene sequences led to further identification of the specimen as Setaria equina. Microfilaremia was not observed on fresh blood smears. There have been no signs of local recurrence after 18 months, nor any evidence of intraocular involvement. To the authors' knowledge, this is the first documented case of subconjunctival setariasis due to S equina in a horse.
Types de publication
Case Reports
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
921-927Informations de copyright
© 2019 American College of Veterinary Ophthalmologists.
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