Habronemic Blepharoconjunctivitis in Horses
Abstract
Habronemic blepharoconjunctivitis was characterized clinically by raised yellow gritty plaques in the palpebral and bulbar conjunctivae. Lid granulomas and blepharitis were observed in some cases. On histologic examination, mast cells, eosinophils, and collagenolysis was found in most sections, but if only one section was examined an erroneous diagnosis of mastocytosis could have been made. Treatment consisted of larvicidal mixtures for lid lesions and organophosphate ophthalmic drops along with corticosteroids for the conjunctivitis. If the cornea was damaged by the gritty conjunctival plaques, healing was more prolonged because corticosteroids were then contraindicated.
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Differential diagnosis of cutaneous and muco-cutaneous forms is challenging because clinical signs, granulomatous lesions in particular, may overlap those of other diseases.
“Differental diagnosis of cutaneous and muco-cutaneous forms is also challenging, in fact, the clinical signs, the granulomatous lesions in particular, may overlap those of other diseases, i.e., botryomycosis, pythiosis, phycomycosis, onchocercosis, equine sarcoid, and squamous cell carcinoma (54, 62–65).”
From Habronematidosis in Equids: Current Status, Advances, Future Challenges (2020) · cites this paper as [54]
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Habronematidosis in Equids: Current Status, Advances, Future Challenges
Barlaam, A., Traversa, D., Papini, R., & Giangaspero, A. (2020) · Frontiers in Veterinary Science · doi:10.3389/fvets.2020.00358 · Cited by 34 · see citing works
“When larvae are released in the eyes or on the periocular tissue, typically in the medial canthus, infected animals present marked conjunctivitis, blepharitis, dermatitis with photophobia and lacrimation (6, 32, 54).”
Conjunctival habronemiosis in a horse in Belgium
Gasthuys, F. M. R., Van Heerden, M., & Vercruysse, J. (2004) · Veterinary Record · doi:10.1136/vr.154.24.757 · Cited by 33 · see citing works
Molecular diagnosis of equid summer sores
Traversa, D., Iorio, R., Petrizzi, L., De Amicis, I., Brandt, S., Meana, A., Giangaspero, A., & Otranto, D. (2007) · Veterinary Parasitology · doi:10.1016/j.vetpar.2007.08.025 · Cited by 33 · see citing works
- Authors
- Rebhun, W. C., Mirro, E. J., Georgi, M. E., & Kern, T. J.
- Affiliations
- Cornell University (US)
- Venue
- Journal of the American Veterinary Medical Association
- Published
- 1981-09-01
- Volume
- 179
- Issue
- 5
- Pages
- 469-472
- ISSN
- 0003-1488 (ISSN-L)
- OpenAlex
- W4407218502
- Cited by
- 40
- References
- 0
- Citations by year
- 2023: 1 · 2022: 1 · 2021: 1 · 2020: 3 · 2018: 3 · 2016: 2 · 2015: 1 · 2013: 2
- FWCI
- 3.97
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of the American Veterinary Medical Association (publishedVersion)
- PubMed (publishedVersion)
- PubMed
- Topics
- Health Sciences › Veterinary › Equine › Veterinary Equine Medical Research
- Health Sciences › Veterinary › Small Animals › Helminth infection and control
- Health Sciences › Medicine › Infectious Diseases › Parasitic Diseases Research and Treatment
- Keywords
- blepharoconjunctivitis, horses, Habronema, blepharitis, mast cells, eosinophils, collagen degradation, larvicidal treatment, corticosteroids, corneal injury
- MeSH terms
- Animals, Blepharitis, Conjunctiva, Conjunctivitis, Diagnosis, Differential, Eyelid Diseases, Female, Horse Diseases, Horses, Male, Urticaria Pigmentosa, Spirurida Infections
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