AI Article Synopsis
- Melanomas in horses, particularly gray ones over 16 years old, are common, but a case is noted with a non-gray horse (a 16-year-old Wielkopolski gelding) developing issues.
- The horse initially had a keratoma removed, but after regrowth and continued lameness, further surgeries were done leading to different histopathological results.
- Eventually, a third examination revealed a low-differentiated malignant neoplasm with high malignancy, indicating a severe progression of the horse's condition.
Article Abstract
Melanomas in horses are most often associated with gray, older horses with an average age of over 16 years. Anaplastic malignant melanoma, however, can very rarely affect non-gray horses. Herein, we report a case of a 16-year-old Wielkopolski gelding with a chronic lameness caused by a mass in the hoof. The first resection of the lesion and histopathological examination confirmed the presence of a keratoma. The regrown mass and persistent lameness resulted in another mass resection. The second histopathological examination result suggested a neoplastic growth of melanocytic origin with a low histological malignancy. Less than 2 years after the first resection, the horse returned to the clinic with deformation of the hoof capsule and severe lameness. The result of the third histopathological examination indicated low-differentiated malignant neoplasm. The result of the immunohistochemically test indicates a tumor of melanocytic origin with high malignancy.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9686975 | PMC |
| http://dx.doi.org/10.3390/ani12223090 | DOI Listing |
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