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Peer-reviewed veterinary case report

Pseudallescheria boydii infection of the nasal cavity of a horse.

Journal:
Journal of the American Veterinary Medical Association
Year:
2000
Authors:
Davis, P R et al.
Affiliation:
Department of Large Animal Surgery and Medicine · United States
Species:
horse

Plain-English summary

An 18-year-old American Quarter Horse gelding, weighing about 1,000 pounds, was having a problem with a smelly discharge coming from one side of his nose that kept coming and going. When the vet looked inside his nose, they found a fungal growth near a specific opening in his sinus that was larger than usual. Tests showed that the fungus was Pseudallescheria boydii. The horse was treated with a nasal medication and two types of iodide, and after 30 and 60 days, follow-up checks showed that his nasal cavity was clear of the infection.

Abstract

An 18-year-old 454-kg (1,000-lb) American Quarter Horse gelding was evaluated because of chronic intermittent malodorous right-sided nasal discharge. Endoscopy revealed a mycotic plaque in the nasal cavity adjacent to the nasomaxillary opening of the right caudal maxillary sinus. The nasomaxillary opening appeared to be larger than normal. Fungal culture of specimens of the mycotic plaque yielded Pseudallescheria boydii. The horse was treated with 2% miconazole intranasally, sodium iodide i.v., and potassium iodide p.o. Thirty and 60 days after treatment was initiated, the nasal cavity was found to be free of infection.

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Original publication: https://pubmed.ncbi.nlm.nih.gov/10976304/