Peer-reviewed veterinary case report
An oral choristoma in a foal resembling hairy polyp in humans.
- Journal:
- Veterinary pathology
- Year:
- 2004
- Authors:
- Steinbach, T J et al.
- Affiliation:
- Department of Veterinary Pathology · United States
- Species:
- horse
Plain-English summary
A young foal was brought in because it had a 6.5-centimeter growth coming from its upper baby teeth. The end of the growth was soft and had hair on it, while the part closer to the mouth was firm and had a tooth inside it. When examined under a microscope, the growth showed skin and tissue layers, along with some fat and muscle, and it contained a fully formed tooth in a bony area. This type of growth is called an oral choristoma, which has similarities to a condition known as a hairy polyp found in humans. The treatment details and outcome were not provided, but the findings suggest a unique case that may need further attention.
Abstract
A neonatal foal was presented with a 6.5-cm pedunculated mass arising from the upper deciduous incisors. The distal end was soft and covered by haired skin, whereas the proximal end was firm, covered with mucosal epithelium, and at the point of transection contained a fully developed tooth. Microscopically, the mass was covered by epidermis and mucosal epithelium and the remaining portion of the mass consisted of mature collagen, nonneoplastic fat and smooth muscle, and a single tooth within a bony socket. The mass is consistent with an oral choristoma and has features similar to those described for hairy polyp in humans.
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Search related cases →Original publication: https://pubmed.ncbi.nlm.nih.gov/15557081/