Peer-reviewed veterinary case report
Horse with vulvar growth diagnosed with cancer - what to know
By Kumbhani, Tapan R et al.·Published in Journal of equine veterinary science·2023·Department of Veterinary Pathology, India·View original on PubMed →
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Original publication title: Vulvar Complex Apocrine Carcinoma in a Horse (Equus caballus): A Case Report and Review of Literature.
- Species:
- horse
Plain-English summary
A 6-year-old Marwari mare had a recurring growth on her vulva, which is the external part of the female reproductive system. The growth was surgically removed and examined under a microscope, where it showed abnormal cell growth. Special tests indicated that the tumor was a complex apocrine carcinoma, a type of cancer that originates from sweat glands. This case is significant because it is the first confirmed instance of this type of cancer in horses.
Abstract
A 6-year-old Marwari mare presented with recurrent vulvar growth. The growth was surgically excised, fixed and processed routinely. Microscopically, neoplasm showed proliferation of epithelial and myoepithelial cells with tubulopapillary pattern. On immunohistochemistry, myoepithelial cells showed strong immunoreactivity with smooth muscle actin alpha and p63. On basis of histopathology and immunohistochemistry, tumour was diagnosed as complex apocrine carcinoma. This case report describes first confirm vulvar complex apocrine carcinoma in equines.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/37086757/