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Double ovarian tumour in the mare: Case report
Aline E Pinna1, Carolina T C Okada2, Camila S C Ferreira1
1Fluminense Federal University - UFF, Niterói, Brazil.
Reproduction in Domestic Animals = Zuchthygiene
|March 30, 2019
Summary
Equine ovarian tumors are typically benign. This case study details a rare instance of a mare with a mixed granulosa cell tumor and leiomyosarcoma, which was successfully treated, restoring the estrous cycle and enabling pregnancy.
Area of Science:
- Veterinary Medicine
- Reproductive Endocrinology
- Equine Oncology
Background:
- Ovarian tumors in mares constitute 2.5% to 6% of equine neoplasms.
- These tumors have a higher likelihood of being benign.
- Reproductive dysfunction can be a clinical sign of ovarian tumors in mares.
Observation:
- A mare presented with a suppressed estrous cycle over a 5-year period.
- Diagnostic imaging revealed the presence of ovarian pathology.
- The mare underwent unilateral ovariectomy for diagnosis and treatment.
Findings:
- Histopathological examination of the resected ovary revealed a concurrent diagnosis of a granulosa cell tumor and leiomyosarcoma.
- This represents a rare case of mixed ovarian neoplasms in a single equine ovary.
Implications:
- Successful surgical intervention (unilateral ovariectomy) can resolve reproductive issues caused by complex ovarian tumors.
- Post-treatment, mares can regain normal estrous cycles and reproductive capacity.
- This case highlights the importance of thorough histopathological evaluation for accurate diagnosis and effective treatment planning in equine reproductive oncology.
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