Peer-reviewed veterinary case report
Horse with swollen jaw muscles - what could it be?
By Step, D L et al.·Published in Journal of the American Veterinary Medical Association·1991·Department of Clinical Sciences, United States·View original on PubMed →
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Original publication title: Severe masseter myonecrosis in a horse.
- Species:
- horse
Plain-English summary
A 6-year-old Quarter Horse was brought in for a check-up because its jaw muscles were very swollen and painful, and it had bulging eyes and swelling around them. Tests showed that the horse had low levels of selenium and vitamin E, which led to a diagnosis of nutritional myopathy (a muscle condition caused by a lack of certain nutrients). After receiving treatment, the horse returned to normal health two weeks later.
Abstract
A 6-year-old Quarter Horse was examined because of acute, severely swollen masseter muscles (palpation of which elicited pain response), exophthalmos, severe chemosis, and protrusion of the third eyelids. Blood selenium and vitamin E concentrations, and results of feed analysis and muscle biopsy supported a diagnosis of nutritional myopathy. The horse was treated and was clinically normal 2 weeks after discharge from the hospital.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/1995566/