Peer-reviewed veterinary case report
Diagnosis and surgical removal of a granulosa-theca cell tumor in a mare.
- Journal:
- The Canadian veterinary journal = La revue veterinaire canadienne
- Year:
- 2005
- Authors:
- Maurice, Kathy T
- Affiliation:
- Ontario Veterinary College · Canada
- Species:
- horse
Plain-English summary
An 8-year-old female horse started acting like a stallion and showed signs of aggression. After some examinations, including a physical check and an ultrasound, the vet suspected she had a granulosa-theca cell tumor, which is a type of ovarian tumor. Blood tests showed high levels of testosterone and inhibin, and a biopsy later confirmed the tumor. The horse underwent surgery to remove the tumor and recovered well, allowing her to be with other horses again by day 45 after the surgery.
Abstract
An 8-year-old mare showed stallion-like behavior and aggressiveness. A granulosa-theca cell tumor was tentatively diagnosed based on history, transrectal palpation, and ultrasonography, and surgically removed. Serological levels of testosterone and inhibin were elevated. Histopathological examination confirmed the diagnosis. The mare recovered and by day 45 could be turned out with other horses.
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Search related cases →Original publication: https://pubmed.ncbi.nlm.nih.gov/16152723/