Peer-reviewed veterinary case report
Tonsillar polyps in adult dogs - types and causes explained
By Molín, Jéssica et al.·Published in Veterinary pathology·2021·16739University of Lleida, Spain·View original on PubMed →
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Original publication title: Canine Tonsillar Polyps: Characteristics, Classification, and Review of the Pathogenesis.
- Species:
- dog
Plain-English summary
A group of adult dogs, mostly female, were found to have tonsillar polyps, which are abnormal growths in the throat area. Most of these polyps didn’t cause any noticeable symptoms, but they were all located on one side and had different shapes and surfaces. The exact cause of these polyps is still unknown, but they were successfully treated with simple surgical removal in the cases where follow-up was available. After surgery, the dogs showed no signs of the polyps returning and appeared to recover well.
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Abstract
Canine tonsillar polyps are uncommon. We describe 14 tonsillar polyps in dogs and review their classification and pathogenesis. All dogs were adult (3-13 years old). Females (10/14) were more affected than males (4/14). Most of the lesions were asymptomatic (10/14). All lesions were unilateral, pedunculated (9/14), or sessile (5/14), with a smooth (12/14) or papillary/verrucous surface (2/14). Histologically, polyps consisted of benign proliferation of lymphatic vessels, blood vessels, fibrous tissue, and lymphoid tissue in variable proportions, with occasional adipose tissue (4/14). According to the main stromal components, polyps were categorized as lymphangiomatous (5/14), lymphangiolipomatous (2/14), lymphangiofibromatous (2/14), angiofibromatous (1/14), angiofibrolipomatous (1/14), lymphoid (2/14), and myxomatous (1/14). As the pathogenesis of these polyps remains unclear, we propose to replace the term inflammatory tonsillar polyp by a morphological diagnosis based on the stromal characteristics of the lesions. Simple surgical excision was curative in the 9 cases with available follow-up information.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/33205702/