Peer-reviewed veterinary case report
Large tonsil polyp found in 8-year-old female cocker spaniel
By Miller, A D et al.·Published in Journal of comparative pathology·2008·Department of Biomedical Sciences, United States·View original on PubMed →
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Original publication title: Tonsillar lymphangiomatous polyp in an adult dog.
- Species:
- dog
Plain-English summary
An 8-year-old female spayed cocker spaniel was found to have a large, smooth growth on her right tonsil. This growth was identified as a tonsillar lymphangiomatous polyp, which is a rare, non-cancerous tumor. The dog did not show any specific symptoms related to the mass, but it was surgically removed. After the surgery, the dog recovered well and did not experience any further issues.
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Abstract
A female spayed cocker spaniel dog, aged 8 years, developed a large, smooth pedunculated mass arising from the right palatine tonsil. Histology revealed that the mass was composed of many, variably dilated, thin-walled lymphatic channels filled with pale eosinophilic fluid lacking red blood cells and embedded in a dense, fibrovascular stroma. The dilated lymphatic channels were lined by a single layer of flattened, discontinuous endothelium with scattered intraluminal valves. Periodic acid-Schiff staining highlighted the discontinuous basement membrane and immunohistochemistry revealed strong cell membrane and cytoplasmic immunoreactivity for CD31 and von Willebrand factor, respectively. The clinical and histological findings were consistent with a tonsillar lymphangiomatous polyp - an uncommon, benign tumour of the tonsil in man that has previously been unrecognized in veterinary medicine.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/18343397/