Peer-reviewed veterinary case report
Third eyelid gland tumors in dogs and cats - types and treatment
By Dees, D Dustin et al.·Published in Veterinary ophthalmology·2016·From Eye Care for Animals, United States·View original on PubMed →
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Original publication title: Third eyelid gland neoplasms of dogs and cats: a retrospective histopathologic study of 145 cases.
Plain-English summary
A study found that a common issue in dogs and cats is tumors in the third eyelid gland, with the most frequent type being adenocarcinoma. In dogs, 85% of the tumors were adenocarcinomas, while in cats, this type made up 83% of cases. Unfortunately, some pets experienced metastasis (spread of cancer) or local recurrence after treatment. The findings suggest that while both species can develop these tumors, cats may have a higher risk of complications. If your pet has a growth in their eye area, it's important to consult your veterinarian for evaluation and potential treatment options.
People also search for: dog third eyelid tumor treatment · cat eye growth adenocarcinoma · symptoms of eye tumors in pets
Abstract
PURPOSE: To describe the various types of primary neoplasms affecting the third eyelid (TEL) gland of dogs and cats. METHODS: A retrospective search of the Comparative Ocular Pathology Laboratory of Wisconsin (COPLOW) database was performed. Veterinary ophthalmologists, primary care veterinarians, and, when appropriate, owners were contacted for patient follow-up information. Patient data points collected included species, age, sex, breed, laterality, tumor type, surgical margins, recurrence, metastasis, and length of follow-up. RESULTS: A total of 127 canine and 18 feline cases met the inclusion criteria. The most common canine TEL gland tumor was adenocarcinoma (n = 108; 85.0%) followed by adenoma (n = 18; 14.2%) and squamous cell carcinoma (SCC) (n = 1; 0.8%). For canine cases with follow-up information available (n = 62), 8.1% had confirmed or suspected metastasis and 11.3% had confirmed or suspected local recurrence of disease. The most common feline TEL gland tumor was adenocarcinoma (n = 15; 83.3%) followed by SCC (n = 3; 16.7%). For feline cases with follow-up information available (n = 9), 40.0% had confirmed or suspected metastasis and 30.0% had confirmed or suspected local recurrence of disease. CONCLUSIONS: This study determined that adenocarcinoma was the most common third eyelid gland tumor in both dogs and cats. The overall survival times were less, and metastatic occurrence and recurrence rates appeared to be higher for feline tumors as compared to those diagnosed in dogs. This is the first report of SCC originating from glandular ductular epithelium.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/25827973/