Peer-reviewed veterinary case report
Arrhenoblastoma in a mare.
- Journal:
- Journal of the American Veterinary Medical Association
- Year:
- 1977
- Authors:
- Mills, J H et al.
- Species:
- horse
Plain-English summary
A 14-year-old Appaloosa mare had a tumor on her ovary that measured about 10 by 8 by 6 centimeters, which was surgically removed. For the two years before the surgery, she showed significant changes in behavior, becoming aggressive towards other mares. Tests before the surgery showed high levels of testosterone and low levels of estradiol, which helped confirm the diagnosis of arrhenoblastoma (a type of ovarian tumor). After the surgery, the mare's aggressive behavior was likely linked to the tumor, and the removal of the tumor should help improve her condition.
Abstract
An ovarian neoplasm measuring 10 by 8 by 6 cm was surgically removed from a 14-year-old Appaloosa mare. For 2 years prior to surgery, the mare had manifested marked behavioral changes, becoming aggressive toward other broodmares. Histologically, the tumor was found to be an arrhenoblastoma. Preoperative endocrinologic findings (high serum testosterone and low serum estradiol concentrations) supported the diagnosis.
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Search related cases →Original publication: https://pubmed.ncbi.nlm.nih.gov/200593/