Peer-reviewed veterinary case report
Micronema granuloma in the gingiva of a horse.
- Journal:
- Journal of the American Veterinary Medical Association
- Year:
- 1985
- Authors:
- Cho, D Y et al.
- Species:
- horse
Plain-English summary
A 4-year-old Appaloosa gelding had a firm growth coming out of his lower jaw, which was also sore and ulcerated on the top. Unfortunately, the horse was put to sleep because the growth made it hard for him to eat, and it was affecting a large part of his jaw. When examined under a microscope, the growth showed many small clusters of inflammatory cells surrounded by thick connective tissue, and there were also tiny worms called Micronema found in the growth and nearby tissue. Sadly, the treatment options were not enough to save him.
Abstract
A well-circumscribed proliferative mass was protruding from the body of the mandible of a 4-year-old Appaloosa gelding. The mass was uniformly firm and was ulcerated on the dorsal surface. The horse was euthanatized due to extensive involvement of the jaw and difficulty in eating. Microscopically, the mass consisted of numerous discrete microgranulomas separated by bands of abundant fibrous connective tissue containing lymphocytes, plasma cells, and histiocytic macrophages. Numerous rhabditiform nematodes were in the microgranulomas as well as in the surrounding connective tissue. The nematodes were identified as Micronema species.
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Search related cases →Original publication: https://pubmed.ncbi.nlm.nih.gov/4055480/