Peer-reviewed veterinary case report
Horse with swelling near ear diagnosed with salivary gland cancer
By Zetterström, Sandra M et al.·Published in Veterinary surgery : VS·2022·Auburn University, United States·View original on PubMed →
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Original publication title: Partial parotid sialoadenectomy in a horse with parotid ductal carcinoma: Surgical description and case report.
- Species:
- horse
Plain-English summary
A 12-year-old American Quarter Horse gelding was brought in for a large swelling below his right ear, which turned out to be a tumor in the parotid salivary gland. The vet performed surgery to remove the tumor and used special materials to help with healing. After the surgery, the horse had some complications, including facial nerve issues and trouble swallowing, but he gradually improved. A year later, there were no signs of the tumor returning, and he was able to go back to work.
People also search for: horse ear swelling treatment · parotid gland tumor in horses · horse surgery recovery time
Abstract
OBJECTIVES: To describe the surgical findings, histopathological features, and long-term outcome for a horse with parotid salivary carcinoma. STUDY DESIGN: Case report ANIMALS: Twelve year old American Quarter Horse gelding. METHODS: The gelding was presented for a 10 × 10 cm swelling below the base of the right ear. Ultrasonographic examination revealed a mass involving the right parotid salivary gland. Incisional biopsy was consistent with parotid carcinoma. The tumor was marginally excised. The lateral wall of the guttural pouch was excised with the mass and was reconstructed with a porcine small intestinal submucosal (SIS) sheet. Cisplatin beads were implanted in the wound bed prior to closure. Firocoxib (0.1 mg/kg orally, daily, every 24 h) treatment was initiated. RESULTS: Postoperative complications included right-sided facial nerve paralysis, difficulty with deglutition of fibrous feeds, and surgical site dehiscence. Wound healing was achieved by second intention. Partial improvement in nerve function was observed within the first 6 months. At 12 months postparotidectomy, no sign of tumor reoccurrence or metastatic disease was present, and the gelding returned to work. CONCLUSION: Partial parotid sialoadenectomy was performed with a favorable long-term outcome. Regional anatomic knowledge is crucial.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/34850982/