Peer-reviewed veterinary case report
Sperm granuloma in a stallion.
- Journal:
- Journal of the American Veterinary Medical Association
- Year:
- 1989
- Authors:
- Held, J P et al.
- Affiliation:
- Department of Rural Practice
- Species:
- horse
Plain-English summary
A 7-year-old male horse had been experiencing abdominal pain after falling and was found to have a swelling in his right testicle and the nearby epididymis, which is the tube that carries sperm. Tests on his semen showed an increase in abnormal sperm. The horse underwent surgery to remove only the affected testicle. The examination of the tissue revealed a condition called sperm granuloma, which is a lump caused by trapped sperm, but there was no sign of infection. The findings suggested that the swelling and changes in the tissue likely happened due to a blockage that had been there before the fall. The treatment of removing the affected testicle was successful in addressing the issue.
Abstract
A 7-year-old stallion with a history of abdominal pain after it fell was examined and found to have a swelling of the right testis and epididymis. Semen evaluation revealed an increase in secondary sperm abnormalities. The stallion was unilaterally castrated. The histologic diagnosis was sperm granuloma, with no evidence of infection. Periductal fibrosis was observed and appeared to have developed before the trauma occurred. The changes seen could be compatible with chronic blockade of efferent ductules, resulting in extravasation of spermatozoa.
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Search related cases →Original publication: https://pubmed.ncbi.nlm.nih.gov/2917896/