Peer-reviewed veterinary case report
Fibroblastic tumor of the premaxilla in two horses.
- Journal:
- Journal of the American Veterinary Medical Association
- Year:
- 1983
- Authors:
- Barber, S M et al.
- Species:
- horse
Plain-English summary
In two horses, there were fast-growing tumors in the area just above their upper front teeth, which caused significant damage and movement of some of those teeth. For the first horse, most of the tumor was surgically removed, and the remaining area was treated with freezing techniques using liquid nitrogen. This horse healed well, and after four years, there has been no sign of the tumor coming back. Unfortunately, the second horse was put to sleep after a preliminary diagnosis suggested a more serious type of cancer, and later examinations confirmed a different type of tumor that had not spread.
Abstract
In 2 horses with rapidly growing, locally destructive tumors of the premaxilla, there was major disruption and displacement of some incisor teeth, with radiographic evidence of disruption of the premaxilla at the base of the tumors. In horse 1, most of the tumor was removed by incising it at its base, and the tumor bed was treated cryosurgically with 3 freeze-thaw cycles, using liquid nitrogen. The area healed by 2nd intention. The tumor was found to be a benign fibroblastic tumor, possibly a fibroma. After 4 years, there has been no recurrence. Horse 2 was euthanatized on the basis of a tentative biopsy diagnosis of osteogenic sarcoma. Postmortem studies supported a diagnosis of fibrosarcoma without metastasis.
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Search related cases →Original publication: https://pubmed.ncbi.nlm.nih.gov/6573308/