Oral Squamous Cell Carcinoma in a Budyonny horse: A case report

Iranian Journal of Veterinary Science and Technology

دوره 17، شماره 3 - شماره پیاپی 40، آذر 2025، صفحه 69-73   

نوع مقاله: Case report

شناسه دیجیتال (DOI): 10.22067/ijvst.2025.92011.1470

نویسندگان

Seyed Mahdi Ghamsari¹؛ Omid Azari^{* 1}؛ Fariborz Moayer²؛ Ali Roustaei¹؛ Seyedeh Houra Mortazavi³

¹Department of Surgery and Radiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.

²Department of Pathobiology, Faculty of Veterinary Medicine, Islamic Azad University, Karaj Branch, Karaj, Iran

³Student of Veterinary Medicine, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.

چکیده

Squamous cell carcinoma (SCC) is a cancerous growth originating from the stratified squamous epithelium and is the most frequently diagnosed oral tumor in horses. This case report describes the clinical, imaging, and histopathological characteristics of gingival SCC in a 23-year-old Budyonny gelding with a history of multiple unsuccessful treatments, including a prior tumor excision attempt. The horse presented with a large, space-occupying soft tissue mass associated with excessive drooling, and lateral tongue protrusion. Laboratory findings were consistent with cancer-related anemia, while diagnostic imaging demonstrated extensive mandibular bone lysis consistent with the tumor’s aggressive nature. Histopathology confirmed grade III gingival SCC, characterized by keratin pearl formation and a high mitotic index. Due to the poor prognosis, high treatment costs, and advanced stage of disease, the owner declined further therapeutic intervention. The horse succumbed to the disease and died 6 months after presentation. This case emphasizes the challenges of managing advanced gingival SCC in equines and underscores the importance of early detection and timely intervention. 

کلیدواژه‌ها

Equine؛ Oral؛ Tumor؛ Squamous Cell Carcinoma

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